F10 SLICE-3: remove superseded public renderAuthorship (salvaged into colorByAuthor) (#29)

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

src/trackChangesModel.ts

@@ -367,39 +367,6 @@ export function colorByAuthor(
   return sentinelsToSpans(render(injected));
 }
 
-/**
- * Pure authorship render (INV-26/28): the CURRENT text with each F3-attributed
- * span colored by author. Prose blocks get inline `<span class="cw-by-*">`;
- * code/mermaid fences stay ATOMIC (INV-27) — an overlapping span yields a
- * block-level author badge, never inner sentinels. Deterministic.
- */
-export function renderAuthorship(
-  currentText: string,
-  spans: AuthorSpan[],
-  opts: RenderOptions = {},
-): string {
-  const render = opts.render ?? defaultRender;
-  const safe = (src: string): string => {
-    try {
-      return render(src);
-    } catch (err) {
-      return chip(err instanceof Error ? err.message : String(err));
-    }
-  };
-  return splitBlocksWithRanges(currentText)
-    .map((b) => {
-      const overlapping = spans.filter((s) => s.end > b.start && s.start < b.end);
-      if (b.type !== "prose") {
-        const badge = authorBadge(new Set(overlapping.map((s) => s.author)));
-        const inner = safe(b.raw);
-        if (!badge) return `<div class="cw-blk">${inner}</div>`;
-        return `<div class="cw-blk ${badge.cls}"><span class="cw-badge">${badge.label}</span>${inner}</div>`;
-      }
-      return `<div class="cw-blk">${colorByAuthor(b.raw, b.start, overlapping, safe)}</div>`;
-    })
-    .join("\n");
-}
-
 /** Off-state body: the current buffer as plain markdown, no annotations (INV-33). */
 export function renderPlain(currentText: string, opts: RenderOptions = {}): string {
   const render = opts.render ?? defaultRender;

test/trackChangesModel.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, test, expect } from "vitest";
-import { splitBlocks, splitBlocksWithRanges, diffBlocks, renderTrackChanges, renderAuthorship, colorByAuthor, type AuthorSpan } from "../src/trackChangesModel";
+import { splitBlocks, splitBlocksWithRanges, diffBlocks, renderTrackChanges, colorByAuthor, type AuthorSpan } from "../src/trackChangesModel";
 
 describe("splitBlocks", () => {
   it("splits prose paragraphs on blank lines, dropping empties", () => {
@@ -159,82 +159,6 @@ describe("splitBlocksWithRanges — block offsets align with the source string",
   });
 });
 
-describe("renderAuthorship", () => {
-  const spanAt = (text: string, sub: string, author: "claude" | "human"): AuthorSpan => {
-    const start = text.indexOf(sub);
-    return { start, end: start + sub.length, author };
-  };
-
-  it("empty spans → plain render (no author wrappers)", () => {
-    const text = "# Hi\n\nplain paragraph.\n";
-    const html = renderAuthorship(text, []);
-    expect(html).not.toContain("cw-by-claude");
-    expect(html).not.toContain("cw-by-human");
-    expect(html).toContain("plain paragraph.");
-  });
-
-  it("wraps a single Claude span inline", () => {
-    const text = "The cat sat on the mat.\n";
-    const html = renderAuthorship(text, [spanAt(text, "cat sat", "claude")]);
-    expect(html).toContain('<span class="cw-by-claude">cat sat</span>');
-  });
-
-  it("marks two authors in one paragraph at exact boundaries", () => {
-    const text = "Alpha beta gamma.\n";
-    const html = renderAuthorship(text, [
-      spanAt(text, "Alpha", "human"),
-      spanAt(text, "gamma", "claude"),
-    ]);
-    expect(html).toContain('<span class="cw-by-human">Alpha</span>');
-    expect(html).toContain('<span class="cw-by-claude">gamma</span>');
-  });
-
-  it("handles two ADJACENT spans (one's end == next's start) in order", () => {
-    const text = "ONETWO\n";
-    const html = renderAuthorship(text, [
-      { start: 0, end: 3, author: "human" }, // ONE
-      { start: 3, end: 6, author: "claude" }, // TWO
-    ]);
-    expect(html).toContain('<span class="cw-by-human">ONE</span><span class="cw-by-claude">TWO</span>');
-  });
-
-  it("clips a span to its block (does not bleed across blocks)", () => {
-    const text = "Para one.\n\nPara two.\n";
-    const html = renderAuthorship(text, [{ start: 0, end: text.length, author: "claude" }]);
-    expect(html).toContain('<span class="cw-by-claude">Para one.</span>');
-    expect(html).toContain('<span class="cw-by-claude">Para two.</span>');
-  });
-
-  it("a code fence overlapping a span gets a block badge, NOT inner sentinels (atomic)", () => {
-    const text = "```js\nconst x = 1;\n```\n";
-    const html = renderAuthorship(text, [{ start: 0, end: text.length, author: "claude" }]);
-    expect(html).toContain("cw-by-claude");
-    expect(html).toContain("cw-badge");
-    expect(html).not.toMatch(/[\uE000-\uE003]/); // no sentinel leaked
-    expect(html).toContain("const x = 1;");
-  });
-
-  it("a mermaid fence authored by Claude renders as a diagram with a badge", () => {
-    const text = "```mermaid\ngraph TD; A-->B;\n```\n";
-    const html = renderAuthorship(text, [{ start: 0, end: text.length, author: "claude" }]);
-    expect(html).toContain('pre class="mermaid"');
-    expect(html).toContain("cw-by-claude");
-    expect(html).toContain("cw-badge");
-  });
-
-  it("never leaks a raw sentinel into prose output", () => {
-    const text = "Some mixed text here.\n";
-    const html = renderAuthorship(text, [spanAt(text, "mixed", "claude")]);
-    expect(html).not.toMatch(/[\uE000-\uE003]/);
-  });
-
-  it("is deterministic", () => {
-    const text = "Stable input paragraph.\n";
-    const spans: AuthorSpan[] = [spanAt(text, "input", "claude")];
-    expect(renderAuthorship(text, spans)).toBe(renderAuthorship(text, spans));
-  });
-});
-
 describe("colorByAuthor", () => {
   test("colorByAuthor wraps human-authored prose in cw-by-human spans", () => {
     const raw = "hello world";