fix: restore .gitignore entries removed during rebase

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -14,6 +14,12 @@ dist/
 .DS_Store
 Thumbs.db
 
+# Docs media — served from CDN, not committed.
+# Regenerate with scripts/generate-{catalog,template}-previews.ts then upload
+# with `bun run upload:docs-images`. Add explicit negations below for any
+# non-generated assets (logos, svgs) that should stay in the repo.
+docs/images/
+
 # IDE
 .vscode/
 .idea/
@@ -29,14 +35,8 @@ packages/producer/tests/*/failures/
 
 # Rendered output (not test fixtures — those use git LFS)
 output/
-renders/
 !packages/producer/tests/*/output/
 
-# Composition source media (large binaries)
-compositions/**/*.mp4
-compositions/**/*.mov
-compositions/**/*.MOV
-
 # npm pack artifacts
 *.tgz
 
@@ -53,6 +53,28 @@ packages/producer/src/services/fontData.generated.ts
 
 # Test artifacts
 my-video/
+examples/
 packages/studio/data/
 .desloppify/
 .worktrees/
+
+# Playwright MCP browser cache
+.playwright-mcp/
+
+# Installed skills (user-specific)
+.agents/
+.claude/skills/
+skills-lock.json
+
+# Skills from other PRs (not managed here)
+skills/hyperframes-animation-map/
+skills/hyperframes-contrast/
+
+# Capture outputs
+captures/
+# Legacy test captures at repo root (use captures/ instead)
+*-capture/
+*-demo/
+*-ad/
+*-tour/
+*-brand/