feat(deploy): move app URL to /human-machine-strata + 301 from the legacy path

Build default app-path → /human-machine-strata; deploy.sh APP_PATH default too.
_write_redirects now emits a permanent redirect /human-experience-simulator/* →
/human-machine-strata/:splat so old links still land. Media (R2 bucket) + Pages
project names are unchanged (not in the benstull.art URL). Updated the build
test (asserts the legacy redirect) + static-build e2e path + README paths.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tools/build_static.py

@@ -59,13 +59,23 @@ def _write_config(app_dir: Path, media_base: str) -> None:
     )
 
 
+# The app's original deploy path, kept as a permanent redirect so old links to
+# /human-experience-simulator/… still land on the renamed /human-machine-strata/….
+LEGACY_APP_PATH = "human-experience-simulator"
+
+
 def _write_redirects(out: Path, seg: str) -> None:
     # Apex → app path, and the no-trailing-slash form → slashed (so RELATIVE asset
-    # urls resolve under the prefix). Cloudflare Pages `_redirects` syntax.
-    (out / "_redirects").write_text(
-        f"/  /{seg}/  308\n"
-        f"/{seg}  /{seg}/  308\n"
-    )
+    # urls resolve under the prefix). Plus a permanent (301) redirect from the legacy
+    # path to the current one. Cloudflare Pages `_redirects` syntax.
+    lines = [
+        f"/  /{seg}/  308\n",
+        f"/{seg}  /{seg}/  308\n",
+    ]
+    if LEGACY_APP_PATH and LEGACY_APP_PATH != seg:
+        lines.append(f"/{LEGACY_APP_PATH}/*  /{seg}/:splat  301\n")
+        lines.append(f"/{LEGACY_APP_PATH}  /{seg}/  301\n")
+    (out / "_redirects").write_text("".join(lines))
 
 
 def _write_headers(out: Path, seg: str) -> None:
@@ -158,7 +168,7 @@ if __name__ == "__main__":
     ap.add_argument("--out", default="dist")
     ap.add_argument("--media-out", default="dist-media")
     ap.add_argument("--media-base", default="https://static.benstull.art/")
-    ap.add_argument("--app-path", default="/human-experience-simulator")
+    ap.add_argument("--app-path", default="/human-machine-strata")
     a = ap.parse_args()
     r = build_static(a.out, a.media_out, media_base=a.media_base, app_path=a.app_path)
     print(json.dumps(r, indent=2))