docs: bestcastr Gmail, ~/repos/ac clone, Cursor handoff, help_request update

Replace foxxspambox0 with bestcastr@gmail.com; document ac-be-public-assets
and secondary-laptop Cursor archive workflow.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/CURSOR_SECONDARY_LAPTOP.md

@@ -0,0 +1,54 @@
+# Cursor IDE — second laptop / agent handoff
+
+Cursor does not ship a single “export entire IDE” button. Use this checklist to move **code + rules + agent chat history** to another machine.
+
+## 1. Code (required)
+
+On the **new** laptop, follow [FRESH_ENV_CLONE.md](FRESH_ENV_CLONE.md) (`~/repos/ac`).
+
+## 2. Workspace rules (recommended)
+
+Copy from the old machine:
+
+| Source | Destination on new laptop |
+|--------|---------------------------|
+| `~/repos/ac/.cursor/rules/` (if present) | same under workspace |
+| `~/repos/ac/AGENTS.md` | workspace root |
+
+Or re-clone — rules live in `ac-docs` / monolith exports when committed.
+
+## 3. Agent conversation history
+
+Cursor stores transcripts per project, e.g.:
+
+`~/.cursor/projects/<project-slug>/agent-transcripts/*.jsonl`
+
+**Handoff archive** (run on the **old** laptop from repo root):
+
+```bash
+cd ~/repos/ac
+tar czvf ~/ac-cursor-handoff-$(date +%Y%m%d).tar.gz \
+  .cursor/rules 2>/dev/null \
+  AGENTS.md 2>/dev/null \
+  -C "$HOME/.cursor/projects" \
+  $(ls -1d "$HOME/.cursor/projects"/*androidcast* 2>/dev/null | xargs -I{} basename {})
+```
+
+Copy the `.tar.gz` to the new laptop and extract:
+
+```bash
+mkdir -p ~/.cursor/projects
+tar xzvf ac-cursor-handoff-YYYYMMDD.tar.gz -C ~
+```
+
+Open **`~/repos/ac`** in Cursor on the new machine — past chats appear under that project when the slug matches.
+
+## 4. What is *not* portable
+
+- Local Cursor login / API keys (re-sign-in)
+- Uncommitted work (commit or stash before switch)
+- Cluster secrets (`secrets.lab.env` on NFS — not in git)
+
+## 5. Scripted helper
+
+`ac-scripts/export-cursor-handoff.sh` — builds the tarball paths above.