Add cold-start CLI installer (#313)

docs/development/release-checklist.md

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+# Release Checklist
+
+Before tagging a release, run through this checklist on real machines (not just CI containers).
+
+## Manual smoke tests (~30 min total)
+
+For each platform below, start from a fresh user account / VM snapshot. Run the install one-liner and verify the steps in the table.
+
+| Platform | One-liner | Verify |
+|---|---|---|
+| macOS Intel laptop | `curl -fsSL <url> \| bash` | (1)–(8) below |
+| macOS ARM laptop | same | (1)–(8) |
+| Ubuntu 22.04 fresh VM | same | (1)–(8) |
+| Fedora 40 fresh VM | same | (1)–(8) |
+| WSL2 Ubuntu on Windows | same | (1)–(8) |
+
+### Verification steps
+
+1. **Install completes ≤ 5 min** on typical broadband.
+2. **`jarvis` (no args)** drops into a chat session within 2 s.
+3. **First chat turn returns a response** from `qwen3.5:2b` via Ollama.
+4. **Banner shows background work** ("Setting up in background: …") while it's still going.
+5. **Completion notification fires** between turns when the bg work finishes (Rust extension or a model).
+6. **`jarvis doctor`** exits 0 once all bg work completes; shows the Background tasks table.
+7. **Re-run `curl … | bash`** on the same machine. It completes ≤ 30 s, says `[ok] step already done` for every step.
+8. **`jarvis-uninstall`** removes `~/.openjarvis/` and `~/.local/bin/jarvis*`. Verify with `ls`.
+
+## Cloud quick-path verification
+
+On any one platform:
+
+```bash
+export ANTHROPIC_API_KEY=test-fake-key
+jarvis init --force
+```
+
+Verify init proposes cloud (mentions "anthropic" in the prompt), and the resulting `config.toml` has `[intelligence] provider = "anthropic"`.
+
+## Failure-mode spot checks
+
+Run at least one failure scenario per release; rotate which one.
+
+- Disconnect network mid-install — verify clear error and re-run completes.
+- Delete `~/.openjarvis/config.toml` — verify bare `jarvis` re-runs init.
+- Delete `~/.openjarvis/.venv` — verify re-running curl heals it.
+- `EUID=0 bash install.sh` — verify hard-fail with "don't run as root".
+
+## CI gates (automated, no manual action)
+
+- All pytest tests pass: `uv run pytest tests/`
+- All bats tests pass: see `.github/workflows/bash-tests.yml`
+- Container integration matrix is green: see `.github/workflows/installer-integration.yml`