chore: public-readiness cleanup

- Remove default Grafana password (fail loudly if unset)
- Clean up stale delivery-proof TODO (already implemented at RPC layer)
- Document TUI send as local-only, point to REPL for E2E delivery
- Gitignore AI workflow files (CLAUDE.md, master-prompt.md, ai_team.py)
- Remove 5 orphaned v1 crates (bot, ffi, gen, gui, mobile)
- Commit ROADMAP.html updates

CLAUDE.md

@@ -1,23 +0,0 @@
-# quicproquo — Claude Code Instructions
-
-## Agent Team Workflow Rules
-
-### NEVER delete worktrees before preserving changes
-When using agent teams with `isolation: "worktree"`:
-1. **Before calling `TeamDelete`**, always check each worktree for uncommitted or committed changes
-2. **Create a named branch** from each worktree's HEAD and push/preserve it before cleanup
-3. **Preferred pattern**: use `git branch fix/<name> <worktree-HEAD-sha>` to save the work
-4. If an agent reports changes, its worktree branch MUST be merged or saved before the team is deleted
-
-### Agent team best practices
-- Always have agents **commit their changes** with descriptive messages before shutting them down
-- After all agents report, **list worktrees** (`git worktree list`) and **save branches** before cleanup
-- When using worktree isolation, the sequence must be: agents finish → save branches → merge → TeamDelete
-- Never call TeamDelete as a shortcut to kill zombie agents — use `rm -rf ~/.claude/teams/<name>` for the team metadata only, preserving worktree dirs
-
-### Git workflow
-- Conventional commits: `feat:`, `fix:`, `chore:`, `docs:`, `test:`, `refactor:`
-- GPG-signed commits only
-- No `Co-authored-by` trailers
-- No `.unwrap()` on crypto or I/O in non-test paths
-- Secrets: zeroize on drop, never in logs