Merge pull request 'feat(sim): sky scale + auto-start experience + drop reef_hawaiian' (#29) from feat/sky-scale-expanded-pools into main

2026-06-29 14:01:46 +00:00
parent ed5ce09a3c 73d92b90d0
commit eff43bd148
630 changed files with 6906 additions and 1123 deletions
@@ -63,6 +63,258 @@ stays non‑commercial**.
 > confirm with operator). The current ring scale id is `cosmos`; when the pool is
 > wired, `cosmos` becomes one pool member.

+## 🏗️ BUILD (2026-06-28, branch `feat/sky-scale-expanded-pools`) — curated pools + sky scale
+
+> **Decision:** add the `sky` scale + **curate every pool to ~7–8 clips** (operator chose
+> "curate, expand from the sim" over a full ~2,000-morph bake). Morphs are **cheap and
+> length-independent** — `transition_cmd` does `trim=0:3`, so each morph uses only the
+> first 3s of each clip (2–6MB all-intra), so the curated bake is ~616 morphs ≈ ~1.8GB /
+> ~30 min. **Long clips (45–60s) validated:** a 53s loop bitrate-capped (libx264 crf 23,
+> `-maxrate 2.8M -bufsize 5.6M`, 1080p) = ~20MB, under the ~25MB front-proxy/LFS ceiling.
+> The pool processor downloads each source, trims its long window, [vidstab-stabilizes /
+> xfade-splices where flagged], crossfade-loops, and writes the capped proxy to
+> `simulator/sample_media/<id>/base.mp4`.
+>
+> **Curated lineup (~43 clips; 30 new + 13 existing reused; prune/expand from the sim):**
+> - **cosmos (7):** cosmos, cosmos_galaxies + cosmos_orion, _tarantula, _westerlund, _southernring, _carina_eso
+> - **orbit (7):** orbit_planetearth, _bluemarble + orbit_aurora2025, _citylights, _helene, _epic, _illuminated
+> - **sky (8) NEW SCALE** (between orbit & coast): sky_grca_templesa, sky_greenland_landice (stab), sky_greenland_suture (stab), sky_jungle_amazon (amazon+canopy splice), sky_jungle_waterfall, sky_coast_cliffspain, sky_mtn_castlecrags, sky_mtn_rocky
+> - **coast (7):** coast_birdrock, _surfgrass + coast_kelp, _otters, _kalaloch, _seals, _mist (dropped short drakesbeach/elkbeach)
+> - **reef (6):** reef_lionfish, _spawning, _hawkfish, _coralspacific + reef_redsea, _flowergarden (dropped murky reef_snapper; dropped reef_hawaiian — text overlay)
+> - **abyss (7):** abyss_wow, _midwaterexp, _hiding + abyss_bigfin, _dandelion, _octopus, _seapig
+>
+> **Remaining build steps:** (1) processor finishes the 30 new bases → (2) wire
+> `build_pool_manifest.py` (RING_ORDER + `sky`, POOLS, SCALE_AUDIO, META/AFFECT/LABELS for
+> new clips) → (3) regenerate manifest + `--media` morph bake (~616) → (4) update
+> `test_build_pool_manifest.py` morph-count assertion + run pytest/playwright → (5) ship via
+> §9 (localhost+E2E → PPE). All dropped/unpicked Round-4 candidates remain in
+> `/review_pool.html` for easy add-back.
+
+## 📜 License policy FINALIZED (2026-06-28) + Round-4 expanded candidates
+
+> **License policy (supersedes the "strict PD" framing above).** The operator confirmed
+> the installation **alters** footage (needs derivative rights), **will keep a credits
+> list**, and **may be shown commercially**. **Usable:** `CC0`, US-gov **Public Domain**,
+> **CC BY**, **CC BY-SA** (share-alike accepted), **Pexels License**. **Never usable:**
+> **CC BY-ND** (no derivatives) and **all NonCommercial (`CC BY-NC*`)** variants. For CC
+> BY / BY-SA, credit the author + note "footage altered." Pexels needs no attribution.
+> Recorded in agent memory `media-license-policy`.
+>
+> ⚠️ **License correction (abyss sourcing):** **Schmidt Ocean Institute, Nautilus Live /
+> Ocean Exploration Trust, and MBARI are NonCommercial / all-rights-reserved → NOT usable.**
+> Deep-sea picks are NOAA Ocean Exploration (PD) / CC0 only.
+>
+> **Round-4 (2026-06-28): ~10 fresh candidates PER altitude**, sourced under the widened
+> licenses and chosen for **long clean windows (45–60s)** per the operator's "make the
+> videos longer" ask (we cap bitrate to keep LFS objects <25MB). All 56 are HEAD-verified
+> and live in the streaming gallery **`/review_pool.html`** (the URLs/windows/licenses are
+> recorded in that committed file). Awaiting operator picks per altitude. Highlights:
+> cosmos = Orion/Tarantula/Westerlund/Bubble/Carina-ESO/Stephan's-Quintet/Southern-Ring
+> flythroughs (NASA SVS PD + ESA/ESO CC BY); orbit = ISS auroras + city-lights + storm-limb
+> + EPIC full-disk + ESA Sentinel (PD/CC0/CC BY-SA); sky = volcano/savanna/autumn/sea-of-clouds/
+> dunes/salt-flats/vineyards/badlands/boreal terrains; coast = kelp/otters/tidepool-crab/
+> surf-on-rock/gulls/seals; reef = Red Sea (CC BY-SA) + 6 NOAA reels (clear-water windows);
+> abyss = bigfin squid/dandelion siphonophore/psychedelic medusa/ghost shark/octopus/
+> CC0 sea-pig/bamboo-coral forest/vents/dragonfish/isopod.
+
+## ☁️ sky — PROPOSED NEW scale (candidates, awaiting operator review)
+
+> ➕ **New altitude: "up in the clouds, flying over the earth" (sourced 2026-06-27).**
+> A new ring scale that sits **between `orbit` (ISS / space) and `coast` (ground)** —
+> the airplane-window / low-flight layer. Proposed slug **`sky`**, emoji ☁️; ring
+> order would become cosmos → orbit → **sky** → coast → reef → abyss (operator to
+> confirm slug + placement). The 20 candidates below are **NOT yet downloaded or
+> processed** — they are a review list. Watch them streaming from the source at
+> **`/review_sky.html`** (served by the sim; nothing downloads until you press
+> play), then pick the keepers and we'll trim → crossfade-loop → 1080p them into a
+> pool like every other scale. All are strict US-gov **public domain** unless noted;
+> all direct URLs HEAD-verified 200 + `video/mp4` on 2026-06-27.
+
+> ✅ **OPERATOR SELECTED (2026-06-28) — 15 clips, SOURCING CLOSED** (Selected band on `/review_sky.html`):
+> - *Aircraft aerials (4):* `sky_grca_templesa`, `sky_grca_templesb`,
+>   `sky_greenland_landice` (**stabilize**, vidstab — wobbly), `sky_greenland_suture` (**stabilize**).
+>   *(`sky_greenland_gopro` removed.)*
+> - *Rainforest (4):* `sky_jungle_amazon` (**spliced with `sky_jungle_canopy`** into one clip,
+>   short crossfade at the seam), `sky_jungle_river`, `sky_jungle_waterfall`,
+>   `sky_jungle_warmlight`. *(All Pexels License.)*
+> - *Coast (3):* `sky_coast_dunes` (CC-BY — credit; downscale the 4K),
+>   `sky_coast_turquoise`, `sky_coast_cliffspain` (Pexels).
+>   *(`sky_coast_norway` and `sky_coast_cliffsurf2` removed.)*
+> - *Mountains (4):* `sky_mtn_rocky`, `sky_mtn_castlecrags`, `sky_mtn_granite`,
+>   `sky_mtn_sierra` (swapped in for `sky_mtn_snowfield`).
+>
+> Balance: aircraft 4 · rainforest 4 · coast 3 · mountains 4. The Round-3b/3c
+> rainforest candidates not listed above (`misty`/`clouds`/`riverhd`/`textured` +
+> `_alt`s) were **not chosen**.
+>
+> **Clip-length audit (2026-06-28, measured via cv2 on the on-disk pool):** shortest
+> existing loops are `coast_drakesbeach` **14s** and `coast_elkbeach` **17s** (both the
+> ground-level coast scale), then `reef_snapper` 20s, `cosmos_miri` 21s; everything else
+> ~23s (`reef_spawning` 27s longest). The new `sky` clips all have ≥24s windows → bake to
+> ~22–23s. Open option: re-trim the two short coast outliers to longer windows during the
+> sky processing pass.
+>
+> **Dropped / superseded:** the other 15 round-1 candidates; round-2 coast
+> `sky_coast_icefjord` + `sky_coast_moher`; round-2 mountains `sky_mtn_shasta` +
+> `sky_mtn_snowfield`; the round-2 rainforest batch (lidar/DVIDS jungle — all rejected);
+> round-3 coast `sky_coast_reef` (unpicked) + `sky_coast_oregon` (humans + nauseating
+> FPV). `sky_coast_reeflagoon`/`sky_coast_cliffsurf` (too short) → replaced; the short
+> round-3 rainforest clips (`amazon`/`canopy`/`river` kept; `misty`/`clouds`/`riverhd`
+> too short) → replaced in Round-3b. Live review page: `/review_sky.html`.
+
+**Group A — real aerial, from aircraft** (the heart of the scale):
+
+| id | clip | source | direct media | window (s) | notes |
+|----|------|--------|--------------|-----------|-------|
+| `sky_grca_pivot` | Grand Canyon — high-altitude, straight down + slow 360° pivot | NPS GRCA b-roll hd09 — https://www.nps.gov/grca/learn/photosmultimedia/b-roll_hd09.htm | https://www.nps.gov/nps-audiovideo/audiovideo/302c9dbf-f9ad-4964-bbf3-a21b536f36ed1080p.mp4 | 0–24 | PD · 1080p · text/human-free; ~25s clip (use whole) |
+| `sky_grca_upstream` | Grand Canyon — high-elevation glide tracking upstream | NPS GRCA hd09 (same page) | https://www.nps.gov/nps-audiovideo/audiovideo/237ed336-b101-4a44-81f1-36d692c08a7a1080p.mp4 | 12–36 | PD · 1080p · trim before the mid-clip zoom |
+| `sky_grca_templesa` | Grand Canyon — banking aerial over cliffs & "temples" (A) | NPS GRCA hd10 — https://www.nps.gov/grca/learn/photosmultimedia/b-roll_hd10.htm | https://www.nps.gov/nps-audiovideo/audiovideo/0121cbe5-b185-4f9f-94af-e55f3ade40161080p.mp4 | 0–24 | PD · 1080p |
+| `sky_grca_templesb` | Grand Canyon — cliffs & "temples" aerial (B, alt angle) | NPS GRCA hd10 (same page) | https://www.nps.gov/nps-audiovideo/audiovideo/0b014199-8287-441c-b535-2416d7b049521080p.mp4 | 0–24 | PD · 1080p |
+| `sky_grca_river` | Grand Canyon — low-elevation aerial skimming the Colorado River | NPS GRCA hd08 — https://www.nps.gov/grca/learn/photosmultimedia/b-roll_hd08.htm | https://www.nps.gov/nps-audiovideo/audiovideo/008a5147-7b14-49a1-9871-13aeb03325aa1080p.mp4 | 0–24 | PD · 1080p · lower/faster altitude variety |
+| `sky_greenland_gopro` | IceBridge — Western Greenland, forward flight (GoPro) | NASA SVS 13474 — https://svs.gsfc.nasa.gov/13474 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013474/YOUTUBE_1080_13474_2019_GoPro_Front_4K_youtube_1080.mp4 | 30–54 | PD · 1080p (4K master on page) |
+| `sky_greenland_landice` | IceBridge — N. Greenland, low flight over snowy land ice | NASA SVS 13472 — https://svs.gsfc.nasa.gov/13472 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013472/YOUTUBE_1080_13472_Panasonic_2016_Airborne_LandIce_4K_youtube_1080.mp4 | 20–44 | PD · 1080p |
+| `sky_svalbard_land` | IceBridge — Svalbard, over glaciated mountains | NASA SVS 13473 — https://svs.gsfc.nasa.gov/13473 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013473/YOUTUBE_1080_13473_LandIce_2017_iPhone_youtube_1080.mp4 | 25–49 | PD · 1080p |
+| `sky_svalbard_seaice` | IceBridge — Svalbard, banking over fractured pack ice | NASA SVS 13477 — https://svs.gsfc.nasa.gov/13477 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013477/YOUTUBE_1080_13477_iPhone_2017_SeaIce_Broken_youtube_1080.mp4 | 20–44 | PD · 1080p · abstract ice leads |
+| `sky_petermann_icebergs` | IceBridge — over icebergs toward Petermann calving front | NASA SVS 13471 — https://svs.gsfc.nasa.gov/13471 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013471/YOUTUBE_1080_3471_4K_SeaIce_2017_Icebergs_CalvingFront_youtube_1080.mp4 | 30–54 | PD · 1080p (4K master) |
+| `sky_greenland_suture` | IceBridge — N. Greenland, overhead sea-ice patterning ("Suture") | NASA SVS 13472 — https://svs.gsfc.nasa.gov/13472 | https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013472/YOUTUBE_1080_13472_4K_SeaIce_2017_Suture_youtube_1080.mp4 | 15–39 | PD · 1080p (4K master) · nadir ice texture |
+| `sky_helheim` | "The Helheim Experience" — scenic C-130 flight near Helheim Glacier | NASA SVS 11862 — https://svs.gsfc.nasa.gov/11862/ | https://svs.gsfc.nasa.gov/vis/a010000/a011800/a011862/Helheim_scenic_youtube_hq.mov | 40–64 | PD · ⚠ **720p only** · source has a music bed (mute it) |
+| `sky_clouds_mountains` | "Cloudy with a Chance of Mountains" — clouds + mountains aerial | US DoD / DVIDS 464215 — https://www.dvidshub.net/video/464215/cloudy-with-chance-mountains-no-lower-thirds | https://d34w7g4gy10iej.cloudfront.net/video/1604/DOD_103314280/DOD_103314280-1024x576-1769k.mp4 | scrub | PD (DoD) · ⚠ **576p** · "no lower thirds" cut; scrub to an aerial-only segment |
+
+**Group B — cloudscapes & atmosphere (CG renders, "in/above the clouds"):**
+
+| id | clip | source | direct media | window (s) | notes |
+|----|------|--------|--------------|-----------|-------|
+| `sky_clouds_na` | Clouds over North America — cinematic cloud-layer sweep | NASA SVS 3860 — https://svs.gsfc.nasa.gov/3860/ | https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003860/hsymph_na.mp4 | 3–27 | PD · 1080p · closest "sea of clouds" beauty shot (~115 MB) |
+| `sky_clouds_gulf` | Simulated clouds over the Gulf — artistic "beauty" render | NASA SVS 3921 — https://svs.gsfc.nasa.gov/3921/ | https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003921/michael_beauty_v08_1080p.mp4 | 2–26 | PD · 1080p · art-lit towering clouds (~118 MB) |
+| `sky_geos_7km` | GEOS-5 modeled clouds — 7 km global resolution | NASA SVS 3657 — https://svs.gsfc.nasa.gov/3657/ | https://svs.gsfc.nasa.gov/vis/a000000/a003600/a003657/comp_geos5_7km.mp4 | 3–27 | PD · 1080p · small file (~23 MB, LFS-friendly) |
+| `sky_geos_35km` | GEOS-5 modeled clouds — 3.5 km global resolution | NASA SVS 3659 — https://svs.gsfc.nasa.gov/3659/ | https://svs.gsfc.nasa.gov/vis/a000000/a003600/a003659/comp_geos5_3.5km_new.mp4 | 4–28 | PD · 1080p · ⚠ white flashes at loop-restart — land window between them (~141 MB) |
+| `sky_geos_visible` | GEOS-5 "visible" — photoreal clouds + aerosols deck | NASA SVS 30591 — https://svs.gsfc.nasa.gov/30591/ | https://svs.gsfc.nasa.gov/vis/a030000/a030500/a030591/geos_visible_1080p.mp4 | 10–34 | PD · 1080p (4K master) · ⚠ **large ~573 MB**; scrub for any colorbar |
+
+**Group C — atmospheric limb / full-disk (orbit-adjacent, optional — may overlap `orbit`):**
+
+| id | clip | source | direct media | window (s) | notes |
+|----|------|--------|--------------|-----------|-------|
+| `sky_earth_atmos` | Spinning Earth with atmosphere, clouds & night lights | NASA SVS 5570 — https://svs.gsfc.nasa.gov/5570/ | https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005570/Earth_wAtmos_spin_02_1080p60.mp4 | 0–24 | PD · 1080p60 (4K master) · visible atmospheric limb + cloud layer (~33 MB) |
+| `sky_goes_fulldisk` | GOES-16 — first full-disk Earth (true color) | NOAA GOES-R — https://www.goes-r.gov/multimedia/dataAndImageryVideosGoes-16.html | https://www.goes-r.gov/multimedia/originalVideoCopies/dataAndImagery/GOES16/ABI_Jan15_2017_fulldisk_loop.mp4 | 0–7 (loop) | PD (NOAA/NASA) · 1440×1080 · ⚠ tiny NOAA+NASA logo bottom-right (croppable) |
+
+### Round-2 candidates (2026-06-28) — aerial over rainforest / coast / mountains
+
+All direct URLs HEAD-verified 200 on 2026-06-28. Strict US-gov **public domain**
+unless a license is given; CC-BY/CC-BY-SA usable with the credit shown; ⚠ Pexels
+clips use a custom non-PD license (flagged). "Human-free" on the CC-BY/Pexels clips
+is from descriptions — eyeball the window before baking.
+
+**🌴 rainforest (aerial over canopy)** — *clean strict-PD photographic rainforest aerial is thin; NASA's are lidar renders, the DVIDS clips need windowing:*
+
+| id | clip | source | direct media | window (s) | notes |
+|----|------|--------|--------------|-----------|-------|
+| `sky_canopy_transect` | 50 km of Brazilian forest canopy — continuous flyover | NASA SVS 4530 — https://svs.gsfc.nasa.gov/4530 | https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004530/transect2014_1080p30.mp4 | 18–42 | PD · 1080p (4K avail) · ⚠ lidar render, not photographic |
+| `sky_canopy_flythrough` | Flying through LIDAR canopy — into the leaves | NASA SVS 4532 — https://svs.gsfc.nasa.gov/4532/ | https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004532/flythrough_1080p30.mp4 | 10–34 | PD · 1080p · ⚠ lidar render; abstract |
+| `sky_jungle_pr` | Puerto Rico — helicopter aerial over jungle mountains | DVIDS 584062 — https://www.dvidshub.net/video/584062/ | https://d34w7g4gy10iej.cloudfront.net/video/1802/DOD_105308416/DOD_105308416.mp4 | 34–58 | PD (USACE) · 1080p, no audio · ⚠ recovery b-roll — only mountain-overflight is clean |
+| `sky_jungle_thai` | Thailand — aerial over dense jungle canopy (Cobra Gold) | DVIDS 585804 — https://www.dvidshub.net/video/585804/ | https://d34w7g4gy10iej.cloudfront.net/video/1802/DOD_105335187/DOD_105335187.mp4 | 0–24 | PD (USMC) · ≤1080p · ⚠ live-fire exercise — pick early canopy beat |
+
+**🌊 coast — no humans (aerial):**
+
+| id | clip | source | direct media | window (s) | license / notes |
+|----|------|--------|--------------|-----------|-----------------|
+| `sky_coast_icefjord` | Greenland — Ilulissat ice fjord, glaciers meeting the sea | NASA SVS 11982 — https://svs.gsfc.nasa.gov/11982/ | https://svs.gsfc.nasa.gov/vis/a010000/a011900/a011982/Aerials.webm | 30–54 | PD · 4K webm ~56 MB · real helicopter aerials (1080p mp4 `Aerials_2.mp4` also live, ~282 MB) |
+| `sky_coast_moher` | Cliffs of Moher — drone over Atlantic sea cliffs | Wikimedia — https://commons.wikimedia.org/wiki/File:Cliffs_of_Moher_drone-video.webm | https://upload.wikimedia.org/wikipedia/commons/6/62/Cliffs_of_Moher_drone-video.webm | 15–39 | **CC BY-SA 4.0 — credit Wiebe de Jager** · 1080p · use over-water window |
+| `sky_coast_norway` | Arctic Norway — fjords &amp; coastal waterways (FPV drone) | Wikimedia — https://commons.wikimedia.org/wiki/File:Aerial_imagery_of_fjords_and_rivers_in_Arctic_Norway.webm | https://upload.wikimedia.org/wikipedia/commons/8/80/Aerial_imagery_of_fjords_and_rivers_in_Arctic_Norway.webm | 60–84 | **CC BY 3.0 — credit anotherview** · 4K ⚠ ~485 MB, trim |
+| `sky_coast_dunes` | The Slufter, Texel — coastal dunes &amp; tidal channels | Wikimedia — https://commons.wikimedia.org/wiki/File:The_Slufter_from_above.webm | https://upload.wikimedia.org/wikipedia/commons/1/12/The_Slufter_from_above.webm | 30–54 | **CC BY 3.0 — credit Sander van Schie – De Verfilmer** · 4K ⚠ ~436 MB, trim |
+| `sky_coast_reeflagoon` | Coral reef / turquoise lagoon from above | Pexels 12952333 — https://www.pexels.com/video/drone-video-of-coral-reefs-under-turquoise-sea-water-12952333/ | https://videos.pexels.com/video-files/12952333/12952333-hd_1920_1080_25fps.mp4 | 0–24 | ⚠ **Pexels License (not PD)** · 1080p (1440p avail) · "No People" tag — confirm |
+| `sky_coast_cliffsurf` | Rugged cliff coastline above the surf | Pexels 5619876 — https://www.pexels.com/video/drone-footage-of-a-cliff-coastline-above-the-sea-water-5619876/ | https://videos.pexels.com/video-files/5619876/5619876-hd_1920_1080_25fps.mp4 | 0–24 | ⚠ **Pexels License (not PD)** · 1080p ~8 MB · confirm no surfers/boats |
+
+**⛰️ mountains (aerial over peaks &amp; ridgelines)** — *the richest strict-PD vein (NPS + US Forest Service):*
+
+| id | clip | source | direct media | window (s) | notes |
+|----|------|--------|--------------|-----------|-------|
+| `sky_mtn_rocky` | Rocky Mountain NP — aerial over alpine summits &amp; tundra | NPS — https://www.nps.gov/media/video/view.htm?id=8E66DB80-64C2-4258-B878-5F9244FB6C60 | https://www.nps.gov/nps-audiovideo/audiovideo/188046ff-c9d6-4859-8c7a-1e0d3d306ed61080p.mp4 | 60–84 | PD · 1080p · pick peaks segment (Trail Ridge Rd in some shots) |
+| `sky_mtn_castlecrags` | Castle Crags — past jagged granite spires &amp; ridgelines | DVIDS 998726 — https://www.dvidshub.net/video/998726/ | https://d34w7g4gy10iej.cloudfront.net/video/2603/DOD_111563303/DOD_111563303.mp4 | 120–144 | PD (USFS) · 1080p · confirmed no text/people — strongest pick |
+| `sky_mtn_shasta` | Mount Shasta — drone aerial of the snow-capped volcano | DVIDS 998733 — https://www.dvidshub.net/video/998733/ | https://d34w7g4gy10iej.cloudfront.net/video/2603/DOD_111563312/DOD_111563312.mp4 | 30–54 | PD (USFS) · 1080p · distant town in part of clip |
+| `sky_mtn_granite` | Shasta-Trinity NF — high alpine terrain near Granite Peak | DVIDS 998735 — https://www.dvidshub.net/video/998735/ | https://d34w7g4gy10iej.cloudfront.net/video/2603/DOD_111563314/DOD_111563314.mp4 | 90–114 | PD (USFS) · 1080p · ridgelines, no text/people noted |
+| `sky_mtn_snowfield` | Mount Shasta slopes — over white alpine snowfields | DVIDS 998725 — https://www.dvidshub.net/video/998725/ | https://d34w7g4gy10iej.cloudfront.net/video/2603/DOD_111563300/DOD_111563300.mp4 | 30–54 | PD (USFS) · 1080p · favor higher-altitude snow (trailhead may appear low) |
+| `sky_mtn_sierra` | Sierra near Peddler Hill — snow-blanketed high country | DVIDS 996457 — https://www.dvidshub.net/video/996457/ | https://d34w7g4gy10iej.cloudfront.net/video/2602/DOD_111530221/DOD_111530221.mp4 | 40–64 | PD (USFS) · 1080p · softer snowy ridges |
+
+### Round-3 candidates (2026-06-28) — fresh rainforest + longer reef/cliff
+
+Replaces the rejected round-2 rainforest batch, and gives the two "liked but too
+short" coast subjects proper length. All HEAD-verified 200 on 2026-06-28; all
+durations support a 24s+ window. **Mostly Pexels License** (free to use, **not**
+PD/CC — flagged) since clean strict-PD photographic aerial in these subjects is
+effectively absent; one CC-BY option included. Human-free is per description —
+eyeball the window before baking.
+
+**🌴 rainforest — fresh batch (photographic drone, wild/uninhabited):**
+
+| id | clip | direct media | window (s) | license / notes |
+|----|------|--------------|-----------|-----------------|
+| `sky_jungle_amazon` | Lush Amazon rainforest canopy — slow aerial push | https://videos.pexels.com/video-files/31291128/13360655_3840_2160_60fps.mp4 | 3–27 | ⚠ Pexels · 4K60 · confirmed no people/buildings/roads/watermark — **top pick** · [page](https://www.pexels.com/video/aerial-view-of-lush-amazon-rainforest-canopy-31291128/) |
+| `sky_jungle_canopy` | Lush green jungle canopy — gliding aerial | https://videos.pexels.com/video-files/29780524/12796533_1920_1080_25fps.mp4 | 2–26 | ⚠ Pexels · native 1080p ~61 MB · [page](https://www.pexels.com/video/aerial-view-of-lush-green-jungle-canopy-29780524/) |
+| `sky_jungle_river` | Amazon rainforest river through unbroken jungle | https://videos.pexels.com/video-files/35969886/15251199_3840_2160_30fps.mp4 | 3–27 | ⚠ Pexels · 4K · the "jungle river" angle · [page](https://www.pexels.com/video/stunning-aerial-view-of-amazon-rainforest-river-35969886/) |
+| `sky_jungle_misty` | Misty mountain forest — low cloud over jungle hills | https://videos.pexels.com/video-files/34697024/14706326_3840_2160_30fps.mp4 | 3–27 | ⚠ Pexels · 4K · cloud-forest mood · [page](https://www.pexels.com/video/misty-mountain-forest-aerial-view-in-dense-jungle-34697024/) |
+| `sky_jungle_clouds` | Lush greenery shrouded in clouds — aerial | https://videos.pexels.com/video-files/36998596/15673868_3840_2160_60fps.mp4 | 3–27 | ⚠ Pexels · 4K60 ~19 MB (small) · [page](https://www.pexels.com/video/aerial-view-of-lush-greenery-shrouded-in-clouds-36998596/) |
+| `sky_jungle_riverhd` | Serene jungle river landscape — aerial | https://videos.pexels.com/video-files/35897960/15226438_1920_1080_30fps.mp4 | 0–24 | ⚠ Pexels · native 1080p ~25 MB (fits LFS as-is) · [page](https://www.pexels.com/video/serene-aerial-view-of-jungle-river-landscape-35897960/) |
+
+**🌊 coast — longer replacements (≥26s of footage):**
+
+| id | clip | direct media | window (s) | dur | license / notes |
+|----|------|--------------|-----------|-----|-----------------|
+| `sky_coast_reef` | Coral reef + blue lagoon, Balicasag (replaces `reeflagoon`) | https://videos.pexels.com/video-files/36379860/15428423_3840_2160_60fps.mp4 | 4–28 | 32s | ⚠ Pexels · 4K60 · truest coral match · ⚠ dive site — check window for boats · [page](https://www.pexels.com/video/aerial-drone-view-of-balicasag-island-coral-reefs-36379860/) |
+| `sky_coast_turquoise` | Rocks in shallow turquoise water, straight down (reeflagoon alt) | https://videos.pexels.com/video-files/12738229/12738229-uhd_2560_1440_30fps.mp4 | 4–28 | 32s | ⚠ Pexels · 1440p · cleanest turquoise (rocky seabed > coral) · [page](https://www.pexels.com/video/drone-view-of-rocks-in-shallow-turquoise-water-12738229/) |
+| `sky_coast_cliffsurf2` | Mountain cliffs above the sea, crashing surf (replaces `cliffsurf`) | https://videos.pexels.com/video-files/4385207/4385207-hd_1920_1080_30fps.mp4 | 8–32 | 50s | ⚠ Pexels · native 1080p · rugged cliffs + surf, no man-made · [page](https://www.pexels.com/video/drone-footage-of-mountain-cliffs-above-the-sea-water-4385207/) |
+| `sky_coast_cliffspain` | Dramatic Atlantic sea cliffs, N. Spain (cliffsurf alt) | https://videos.pexels.com/video-files/36668415/15545045_3840_2160_60fps.mp4 | 1–25 | 26s | ⚠ Pexels · 4K60 · page-confirmed no people/boats/buildings/text · [page](https://www.pexels.com/video/dramatic-cliffs-in-northern-spain-with-ocean-views-36668415/) |
+| `sky_coast_oregon` | Oregon Coast — rugged Pacific sea cliffs &amp; surf (FPV drone) | https://upload.wikimedia.org/wikipedia/commons/4/40/Oregon_Coast_Odyssey-_FPV_Drone_Captures_Stunning_Ocean_Views.webm | 20–44 | 96s | **CC BY 3.0 — credit EagleView** · 4K · the one clean CC cliff option · ⚠ FPV = faster/tilted motion · [page](https://commons.wikimedia.org/wiki/File:Oregon_Coast_Odyssey-_FPV_Drone_Captures_Stunning_Ocean_Views.webm) |
+
+**🌴 Round-3b rainforest — longer versions of the three liked-but-too-short moods (still open):**
+
+Durations measured via ffprobe; all comfortably support a 24s window. All ⚠ Pexels License.
+
+| id | clip | direct media | window (s) | dur | notes |
+|----|------|--------------|-----------|-----|-------|
+| `sky_jungle_misty` | Misty rainforest in dense fog — fog rolling over canopy | https://videos.pexels.com/video-files/30770305/13162099_3840_2160_30fps.mp4 | 10–34 | 120s | 4K · top misty pick, no flags · [page](https://www.pexels.com/video/misty-rainforest-aerial-view-in-dense-fog-30770305/) |
+| `sky_jungle_misty_alt` | Misty mountainous jungle, Vietnam — mist on ridgelines | https://videos.pexels.com/video-files/30575002/13092740_3840_2160_60fps.mp4 | 3–27 | 31s | 4K60 · cloud-forest ridgelines · [page](https://www.pexels.com/video/misty-mountainous-jungle-in-vietnam-30575002/) |
+| `sky_jungle_clouds` | Serene misty green hills — same shoot as original, longer | https://videos.pexels.com/video-files/36998553/15673828_3840_2160_60fps.mp4 | 5–29 | 38s | 4K60 · adjacent ID to the liked clip · [page](https://www.pexels.com/video/serene-aerial-view-of-misty-green-hills-36998553/) |
+| `sky_jungle_clouds_alt` | Flying through clouds over green hills | https://videos.pexels.com/video-files/28499216/12400645_3840_2160_25fps.mp4 | 12–36 | 49s | 4K · strongest "shrouded" feel · [page](https://www.pexels.com/video/aerial-view-through-clouds-over-green-hills-28499216/) |
+| `sky_jungle_riverhd` | Lush green forest &amp; river — river through canopy | https://videos.pexels.com/video-files/35612503/15091993_3840_2160_30fps.mp4 | 10–34 | 54s | 4K · 2nd river (redundant if one river is enough) · [page](https://www.pexels.com/video/aerial-view-of-lush-green-forest-and-river-35612503/) |
+
+**✨ Round-3c rainforest — more distinct looks (balance rainforest to ~4, still open):**
+
+Distinct subjects beyond canopy/river/misty. All ⚠ Pexels License, all ≥33s.
+Gaps the search could NOT fill at the 28s + clean bar: golden-hour raking light,
+volcanic-rainforest ridges, dramatic oxbow S-curves, mist-in-columns (closest
+options were <28s, vertical, contaminated with villages/canoes, or temperate biome).
+
+| id | clip | direct media | window (s) | dur | look |
+|----|------|--------------|-----------|-----|------|
+| `sky_jungle_waterfall` | Waterfall plunging out of dense jungle canopy | https://videos.pexels.com/video-files/8334944/8334944-uhd_4096_2160_24fps.mp4 | 10–34 | 46s | WATERFALL — fully distinct, strongest new look · [page](https://www.pexels.com/video/drone-footage-of-a-forest-with-waterfalls-8334944/) |
+| `sky_jungle_warmlight` | Tropical jungle canopy in warm hazy morning light | https://videos.pexels.com/video-files/26829790/12015586_3840_2160_30fps.mp4 | 4–28 | ~33s | warm low-light (closest to golden-hour found) · [page](https://www.pexels.com/video/aerial-view-of-a-tropical-jungle-with-fog-and-trees-26829790/) |
+| `sky_jungle_textured` | Varied jungle canopy — mixed greens &amp; emergent texture | https://videos.pexels.com/video-files/2317719/2317719-uhd_3840_2160_24fps.mp4 | 6–30 | 37s | textured/emergent canopy, richer than the plain glide · [page](https://www.pexels.com/video/aerial-footage-of-a-jungle-2317719/) |
+
+> **Round-3 sourcing note:** reef/lagoon clips ≥25s are scarce (most are 12–20s); the
+> two above clear the bar. Cliff-coast supply is good. The genuine remaining gap is
+> *strict-PD / CC* reef + rainforest — Commons has no clean aerial reef video and only
+> short/credit-bound rainforest, so Pexels is the pragmatic floor here.
+
+> **Round-2 sourcing notes:** NPS bans in-park drone ops (2014) → almost no NPS
+> *aerial* coast/forest; DVIDS coast aerials nearly all had people/boats/vehicles;
+> photographic strict-PD rainforest aerial is the genuine gap (NASA's are lidar
+> renders) — Pixabay/Pexels drone canopy is the fallback if none of the above land.
+> DVIDS direct files serve as `binary/octet-stream` but are valid mp4 (the page uses
+> `<source type="video/mp4">` so they preview inline).
+
+> **Sources considered & rejected** (so a future session doesn't re-chase them):
+> NOAA's high-res GOES satellite loops (FOUREASTER full-disk, Irma/Maria geocolor,
+> "Clouds with Precipitation", "Satellite Models") all carry burned-in telemetry
+> bars / political borders / date stamps / colorbars → **unusable**. NOAA's clean
+> globes (SOS "Clouds real-time", "Blue Marble") are text-free but only **400×400**
+> *and* overlap the existing `orbit` blue-marble. NESDIS "Earth from Orbit" and the
+> Ocean-Today "Hurricane Hunters" piece are produced/narrated packages with
+> text+people. NASA "Fly Above Alaskan Glaciers" is 360°/equirectangular (not a flat
+> clip). The IceBridge cockpit "banking over Disko Bay" cut has windshield/panel in
+> frame. The full **NASA SVS IceBridge 13471–13477** series is a rich vein if more
+> aerial-ice clips are wanted later (each page also offers multi-GB 4K `.mov`
+> masters).
+
 ## 🛰️ orbit (pool of 3)

 | id | clip | source | window (s) | license |
@@ -38,21 +38,32 @@ MANIFEST = MEDIA / "manifest.json"

 # --- Pools: scale id -> ordered clip ids (primary first) (content-candidate-pool.md) ---
 POOLS: dict[str, list[str]] = {
-    "cosmos": ["cosmos", "cosmos_miri", "cosmos_galaxies", "cosmos_hudf", "cosmos_xdf"],
-    "orbit": ["orbit_planetearth", "orbit_crewobs", "orbit_bluemarble"],
-    "coast": ["coast_birdrock", "coast_surfgrass", "coast_elkbeach", "coast_drakesbeach"],
-    "reef": ["reef_lionfish", "reef_spawning", "reef_hawkfish", "reef_snapper", "reef_coralspacific"],
-    "abyss": ["abyss_wow", "abyss_midwaterexp", "abyss_hiding"],
+    "cosmos": ["cosmos", "cosmos_galaxies", "cosmos_orion", "cosmos_tarantula",
+               "cosmos_westerlund", "cosmos_southernring", "cosmos_carina_eso"],
+    "orbit": ["orbit_planetearth", "orbit_bluemarble", "orbit_aurora2025",
+              "orbit_citylights", "orbit_helene", "orbit_epic"],
+    "sky": ["sky_grca_templesa", "sky_greenland_landice", "sky_greenland_suture",
+            "sky_jungle_amazon", "sky_jungle_waterfall", "sky_coast_cliffspain",
+            "sky_mtn_castlecrags", "sky_mtn_rocky"],
+    "coast": ["coast_birdrock", "coast_surfgrass", "coast_kelp", "coast_otters",
+              "coast_kalaloch", "coast_seals", "coast_mist"],
+    "reef": ["reef_lionfish", "reef_spawning", "reef_hawkfish", "reef_coralspacific",
+             "reef_redsea", "reef_flowergarden"],
+    "abyss": ["abyss_wow", "abyss_midwaterexp", "abyss_hiding", "abyss_bigfin",
+              "abyss_dandelion", "abyss_octopus", "abyss_seapig"],
 }

-# Ring order (large -> small, wraps): cosmos -> orbit -> coast -> reef -> abyss -> cosmos.
-RING_ORDER = ["cosmos", "orbit", "coast", "reef", "abyss"]
+# Ring order (large -> small, wraps): cosmos -> orbit -> sky -> coast -> reef -> abyss -> cosmos.
+# `sky` (the airplane-window / low-flight layer) sits between orbit (space) and coast (ground).
+RING_ORDER = ["cosmos", "orbit", "sky", "coast", "reef", "abyss"]

 # Per-scale soundtrack (audio spec §5.1) — the production-pass output of
 # simulator/build_audio_media.py, served at /media/audio/<path>.
 SCALE_AUDIO: dict[str, str] = {
    "cosmos": "cosmos/pillars.loop.mp3",
    "orbit": "orbit/spaceamb.loop.mp3",
+    # TODO(sky): wants its own wind/air ambience — reusing the orbit space-amb loop as a placeholder.
+    "sky": "orbit/spaceamb.loop.mp3",
    "coast": "coast/waves.loop.mp3",
    "reef": "reef/soundscape.loop.mp3",
    "abyss": "abyss/whale.loop.mp3",
@@ -113,6 +124,71 @@ META: dict[str, tuple[str, str, str]] = {
                          "NOAA Ocean Exploration midwater-exploration-1920x1080-1; trim 16–40s, crossfade-loop"),
    "abyss_hiding": ("“Hiding in the Dark” (NOAA Ocean Exploration)", PD,
                     "NOAA Ocean Exploration dark-1280x720-1; trim 20–44s, crossfade-loop"),
+    # --- Round-4 curated additions (2026-06-28, branch feat/sky-scale-expanded-pools) ---
+    # cosmos
+    "cosmos_orion": ("Orion Nebula — visible/IR flythrough (NASA SVS)", PD,
+                     "NASA SVS 30957 orion_vis_ir_zoom_xfade-1920x1080p30; trim 40–95s, crossfade-loop. Text-free."),
+    "cosmos_tarantula": ("Tarantula Nebula (30 Doradus) zoom (NASA/ESA/CSA/STScI)", CCBY_WEBB,
+                         "ESA/Webb weic2212b; 1080p, trim 1–59s, crossfade-loop."),
+    "cosmos_westerlund": ("Flight through star cluster Westerlund 2 (ESA/Hubble)", "CC-BY 4.0 — credit ESA/Hubble",
+                          "ESA/Hubble heic1509f; 1080p, trim 5–59s, crossfade-loop."),
+    "cosmos_southernring": ("Southern Ring Nebula zoom (NASA/ESA/CSA/STScI)", CCBY_WEBB,
+                            "ESA/Webb weic2207a; 1080p, trim 1–59s, crossfade-loop."),
+    "cosmos_carina_eso": ("Carina Nebula zoom (ESO)", "CC-BY 4.0 — credit ESO",
+                          "ESO eso1828c; 1080p, trim 0–48s, crossfade-loop."),
+    # orbit
+    "orbit_aurora2025": ("ISS aurora — Nov 2025 geomagnetic storm (NASA JSC)", PD,
+                         "NASA JSC ESRS ISS_20251112_071350; 1080p, trim 5–60s, crossfade-loop."),
+    "orbit_citylights": ("ISS night pass — West Coast city lights (NASA JSC)", PD,
+                         "NASA SVS 30180 iss028_nighttime_20110819; 720p, trim 0–54s, crossfade-loop."),
+    "orbit_helene": ("Hurricane Helene from the ISS — storm + atmospheric limb (NASA JSC)", PD,
+                     "NASA JSC jsc2024m000168; trim 5–59s, crossfade-loop."),
+    "orbit_epic": ("DSCOVR/EPIC full-disk Earth time-lapse (NASA GSFC)", PD,
+                   "NASA SVS 12118 EPIC_timelapse; trim 0–60s, crossfade-loop."),
+    "orbit_illuminated": ("“Earth Illuminated” — aurora + Milky Way over the limb (NASA JSC)", "CC0 / public domain",
+                          "NASA JSC Earth_Illuminated_120808; trim 68–113s, crossfade-loop."),
+    # sky (NEW scale — airplane-window / low-flight, between orbit and coast)
+    "sky_grca_templesa": ("Grand Canyon — banking aerial over cliffs & temples (NPS)", PD_NPS,
+                          "NPS Grand Canyon b-roll hd10 0121cbe5; 1080p, trim 0–24s, crossfade-loop."),
+    "sky_greenland_landice": ("IceBridge — low flight over N. Greenland snowy land ice (NASA SVS)", PD,
+                              "NASA SVS 13472 Panasonic 2016 Airborne LandIce; trim 20–60s, vidstab-stabilized, crossfade-loop."),
+    "sky_greenland_suture": ("IceBridge — overhead N. Greenland sea-ice patterning (NASA SVS)", PD,
+                             "NASA SVS 13472 4K SeaIce 2017 ‘Suture’; trim 10–50s, vidstab-stabilized, crossfade-loop."),
+    "sky_jungle_amazon": ("Amazon rainforest canopy — amazon→canopy splice", "Pexels License",
+                          "Pexels 31291128 (amazon canopy) → 29780524 (jungle canopy), 1s xfade splice; crossfade-loop."),
+    "sky_jungle_waterfall": ("Waterfall plunging out of dense jungle canopy", "Pexels License",
+                             "Pexels 8334944; 4K source, trim 6–46s, crossfade-loop."),
+    "sky_coast_cliffspain": ("Dramatic Atlantic sea cliffs, Northern Spain — aerial", "Pexels License",
+                             "Pexels 36668415; 4K source, trim 1–25s, crossfade-loop."),
+    "sky_mtn_castlecrags": ("Castle Crags — gliding past jagged granite spires (US Forest Service)", PD,
+                            "USFS/DVIDS 998726 DOD_111563303; trim 120–174s, crossfade-loop."),
+    "sky_mtn_rocky": ("Rocky Mountain NP — aerial over alpine summits & tundra (NPS)", PD_NPS,
+                      "NPS Rocky Mountain b-roll 188046ff; trim 60–110s, crossfade-loop."),
+    # coast
+    "coast_kelp": ("Giant kelp forest, underwater", "Pexels License",
+                   "Pexels 30285973; 4K source, trim 0–46s, crossfade-loop."),
+    "coast_otters": ("Wild sea otters, Elkhorn Slough CA (USFWS)", PD,
+                     "USFWS Pacific Southwest b-roll (Wikimedia 28833083527); trim 0–48s, crossfade-loop."),
+    "coast_kalaloch": ("Slow surf on rock at sunset, Kalaloch WA", "CC-BY-SA 4.0 — credit Joe Mabel",
+                       "Wikimedia ‘Waves crashing on rocks off Beach 4, Kalaloch’; trim 0–46s, crossfade-loop."),
+    "coast_seals": ("Harbor seals hauled out on a rock", "Pexels License",
+                    "Pexels 6497564; 4K source, trim 8–54s, crossfade-loop."),
+    "coast_mist": ("Sea mist over a rocky coastline", "Pexels License",
+                   "Pexels 31036891; 4K source, trim 3–57s, crossfade-loop."),
+    # reef
+    "reef_redsea": ("Red Sea coral reef — clear blue, colorful", "CC-BY-SA 4.0 — credit Kora27",
+                    "Wikimedia ‘Korallenriff im Roten Meer DSCF1654’; trim 62–86s, crossfade-loop."),
+    "reef_flowergarden": ("Sunlit reef + sergeant majors + jack/scad schools (NOAA Fisheries)", PD,
+                          "NOAA Fisheries b-roll VIDEO_ID 1553921798001; trim 8–68s, crossfade-loop."),
+    # abyss
+    "abyss_bigfin": ("Bigfin squid drifting in black water (NOAA Ocean Exploration)", PD,
+                     "NOAA OER Windows to the Deep 2021 dive10-bigfin-squid; trim 34–76s, crossfade-loop."),
+    "abyss_dandelion": ("Dandelion siphonophore — glowing orb + threads (NOAA Ocean Exploration)", PD,
+                        "NOAA OER 2021 North Atlantic Stepping Stones dive13-dandelion; trim 12–70s, crossfade-loop."),
+    "abyss_octopus": ("Deep-sea octopus (Graneledone) crawling (NOAA Ocean Exploration)", PD,
+                      "NOAA OER 2023 EXPRESS West Coast; Wikimedia Graneledone_boreopacifica_close-up; trim 6–60s, crossfade-loop."),
+    "abyss_seapig": ("Swimming sea cucumber (Enypniastes), CC0 (NOAA)", "CC0 / public domain",
+                     "NOAA Okeanos Gulf of Mexico 2014 Ex1402-dive06; trim 0–44s, crossfade-loop."),
 }

 # --- Affect vocabulary per SCALE (shared by all the scale's pool members) -------
@@ -131,6 +207,12 @@ AFFECT: dict[str, list[tuple]] = {
        ("feel.unity", [0.66, 0.58], 3, ["one", "unity", "belonging", "a borderless belonging"]),
        ("feel.distance", [0.42, 0.82], 4, ["far", "distance", "remoteness", "an exquisite remoteness"]),
    ],
+    "sky": [
+        ("feel.exhilaration", [0.50, 0.44], 1, ["whee", "exhilaration", "elation", "a soaring elation"]),
+        ("feel.freedom", [0.22, 0.68], 2, ["free", "freedom", "release", "a boundless release"]),
+        ("feel.lightness", [0.66, 0.58], 3, ["light", "lightness", "buoyancy", "a weightless buoyancy"]),
+        ("feel.vertigo", [0.42, 0.82], 4, ["whoa", "vertigo", "giddiness", "a giddy, falling vertigo"]),
+    ],
    "coast": [
        ("feel.ease", [0.50, 0.44], 1, ["nice", "ease", "calm", "an unhurried calm"]),
        ("feel.nostalgia", [0.22, 0.68], 2, ["miss", "nostalgia", "wistfulness", "a salt-air wistfulness"]),
@@ -72,22 +72,22 @@ test("a new volume fade supersedes a stale one (audio not silenced after landing
  expect(vol).toBeGreaterThan(0.7);                    // ended near 0.8, not dragged to 0
 });

-test("audio is a 0-10 level dial, defaulting to 0", async ({ page }) => {
+test("audio is a 0-10 level dial", async ({ page }) => {
  await boot(page);
  const ctl = await page.evaluate(() => {
    const c = document.querySelector("#audio") as HTMLInputElement;
-    return { type: c.type, min: c.min, max: c.max, value: c.value };
+    return { type: c.type, min: c.min, max: c.max };
  });
  expect(ctl.type).toBe("range");
  expect(ctl.min).toBe("0");
  expect(ctl.max).toBe("10");
-  expect(ctl.value).toBe("0");                 // silent until raised
 });

-test("turning video on for the first time lifts audio to 3/10", async ({ page }) => {
+test("the experience auto-starts once loaded: video on + audio at 3/10", async ({ page }) => {
  await boot(page);
-  expect(await page.evaluate(() => (document.querySelector("#audio") as HTMLInputElement).value)).toBe("0");
-  await enableVideo(page);                       // first video-on couples audio at a gentle level
+  // No gesture needed — autoStart() flips Video on and lifts audio to a gentle level
+  // the moment the preload finishes.
+  await expect.poll(() => page.evaluate(() => (document.querySelector("#visual") as HTMLInputElement).checked)).toBe(true);
  await expect.poll(() => page.evaluate(() => (document.querySelector("#audio") as HTMLInputElement).value)).toBe("3");
  // The level label reflects it.
  expect(await page.evaluate(() => document.querySelector("#audio-level-val")?.textContent)).toBe("3");
@@ -134,7 +134,7 @@ test("auto-scrub speed is constant per altitude (a 2-step jump takes ~2x a 1-ste
    return (await page.evaluate(() => performance.now())) - t0;
  }
  const t1 = await timeJump(60, "orbit");    // cosmos -> orbit (1 altitude)
-  const t2 = await timeJump(120, "reef");    // orbit -> reef (2 altitudes)
+  const t2 = await timeJump(120, "coast");   // orbit -> coast (2 altitudes; ring is cosmos·orbit·sky·coast·reef·abyss)
  const ratio = t2 / t1;
  expect(ratio).toBeGreaterThan(1.5);        // proportional to distance, not a fixed total
  expect(ratio).toBeLessThan(2.7);           // ~2x, not more
--- a/Show More
+++ b/Show More