shell: fish functions -> ~/.local/bin executables + bash/zsh ports; manage ~/.agents

- 16 cross-shell utilities converted to sh/bash chezmoi executables:
  ai c2p cp-appid extract_agents fab gdc gh-sonr-org-migrate ghg-clone
  ghn gho git-summary launch_omp_livediff_overlay lc-elir mdcp mdp pj
  (ghg-clone not named ghg: unrelated cargo binary owns that name)
- cwd/history helpers stay per-shell: yy c cd clip-last + ghg/ghn/gho
  cd-wrappers in bash/functions/ and zsh/functions/, loaded by rc files
- fish keeps only shell-state functions; converted ones now hit PATH
- cp-appid ignore gating moved to .local/bin path
- dot_agents/skills: 82 skills materialized from dotstate storage so
  dot_claude skill symlinks resolve on fresh bootstrap; dotstate
  profile/symlinks.json released .agents/skills .bashrc .zshrc

dot_agents/skills/cloudflare/references/browser-rendering/gotchas.md

@@ -0,0 +1,88 @@
+# Browser Rendering Gotchas
+
+## Tier Limits
+
+| Limit | Free | Paid |
+|-------|------|------|
+| Daily browser time | 10 min | Unlimited* |
+| Concurrent sessions | 3 | 30 |
+| Requests/minute | 6 | 180 |
+| Session keep-alive | 10 min max | 10 min max |
+
+*Subject to fair-use policy.
+
+**Check quota:**
+```typescript
+const limits = await puppeteer.limits(env.MYBROWSER);
+// { remaining: 540000, total: 600000, concurrent: 2 }
+```
+
+## Always Close Browsers
+
+```typescript
+const browser = await puppeteer.launch(env.MYBROWSER);
+try {
+  const page = await browser.newPage();
+  await page.goto("https://example.com");
+  return new Response(await page.content());
+} finally {
+  await browser.close(); // ALWAYS in finally
+}
+```
+
+**Workers vs REST:** REST auto-closes after timeout. Workers must call `close()` or session stays open until `keep_alive` expires.
+
+## Optimize Concurrency
+
+```typescript
+// ❌ 3 sessions (hits free tier limit)
+const browser1 = await puppeteer.launch(env.MYBROWSER);
+const browser2 = await puppeteer.launch(env.MYBROWSER);
+
+// ✅ 1 session, multiple pages
+const browser = await puppeteer.launch(env.MYBROWSER);
+const page1 = await browser.newPage();
+const page2 = await browser.newPage();
+```
+
+## Common Errors
+
+| Error | Cause | Fix |
+|-------|-------|-----|
+| Session limit exceeded | Too many concurrent | Close unused browsers, use pages not browsers |
+| Page navigation timeout | Slow page or `networkidle` on busy page | Increase timeout, use `waitUntil: "load"` |
+| Session not found | Expired session | Catch error, launch new session |
+| Evaluation failed | DOM element missing | Use `?.` optional chaining |
+| Protocol error: Target closed | Page closed during operation | Await all ops before closing |
+
+## page.evaluate() Gotchas
+
+```typescript
+// ❌ Outer scope not available
+const selector = "h1";
+await page.evaluate(() => document.querySelector(selector));
+
+// ✅ Pass as argument
+await page.evaluate((sel) => document.querySelector(sel)?.textContent, selector);
+```
+
+## Performance
+
+**waitUntil options (fastest to slowest):**
+1. `domcontentloaded` - DOM ready
+2. `load` - load event (default)
+3. `networkidle0` - no network for 500ms
+
+**Block unnecessary resources:**
+```typescript
+await page.setRequestInterception(true);
+page.on("request", (req) => {
+  if (["image", "stylesheet", "font"].includes(req.resourceType())) {
+    req.abort();
+  } else {
+    req.continue();
+  }
+});
+```
+
+**Session reuse:** Cold start ~1-2s, warm connect ~100-200ms. Store sessionId in KV for reuse.