feat: Claude Agent integration + cookbook reconnect + UI polish

- Claude Agent integration: AGENT_CONFIGS.claude, INTG_TYPES.claude,
  setup_claude_routes + integrations/claude/ skill bundle. Wired in
  app.py alongside the existing Codex integration; same scope-gated
  /api/codex/* backend; agent form has new description so users know
  it's setup for an external CLI, not an agent streamed inside Odysseus.
- Remove mark_email_boundaries action: not good enough yet. Stripped
  from task UI, scheduler defaults, registry, tool schema, clear-cache
  route. Added to RETIRED_HOUSEKEEPING_ACTIONS so existing rows + their
  task_runs auto-purge on startup.
- Cookbook download reliability: "Reconnect" fix button in the crash
  diagnosis runs _reconnectTask after probing has-session. 30s confirm
  window before marking a download "done" — kills the Finished/Downloading
  flicker when tmux briefly drops between captures.
- Mobile UX: tap anywhere on a note card body opens the editor;
  Update button morphs to Archive when no text was edited; bell icon
  accent-colored; chip-trashing notif pills fade so only the icon
  rotates into the trash zone.
- Settings integrations: SVG-per-provider in email + API preset
  dropdowns, custom drop-up-aware menus, accent sub-header icons
  (IMAP/SMTP), consistent card styling between list + edit, contacts
  Edit/Delete icons, agent form description copy.

integrations/claude/README.md

@@ -0,0 +1,36 @@
+# Odysseus Claude Code Integration
+
+This directory contains the Claude Code skill bundle for Odysseus.
+
+## User Flow
+
+1. Open Odysseus Settings > Integrations.
+2. Add a Claude Agent.
+3. Copy the full setup commands shown after the generated token.
+4. Toggle the tools Claude is allowed to use.
+5. Configure the terminal Claude Code session:
+
+```bash
+export ODYSSEUS_URL=http://your-odysseus-host:7000
+export ODYSSEUS_API_TOKEN=ody_generated_token
+mkdir -p ~/.claude
+curl -fsSL -H "Authorization: Bearer $ODYSSEUS_API_TOKEN" "$ODYSSEUS_URL/api/claude/plugin.zip" -o /tmp/odysseus-claude-skill.zip
+python3 -m zipfile -e /tmp/odysseus-claude-skill.zip ~/.claude/
+```
+
+Claude Code auto-loads anything under `~/.claude/skills/`, so the `odysseus` skill is
+available in any session that has `ODYSSEUS_URL` and `ODYSSEUS_API_TOKEN` in its
+environment.
+
+## What's in the bundle
+
+- `skills/odysseus/SKILL.md` — the skill definition Claude Code reads.
+- `skills/odysseus/scripts/odysseus_api.py` — small helper that calls the scoped
+  `/api/codex/*` endpoints (these are the canonical scope-gated agent API; the
+  `codex` path is historic and shared by all agent integrations).
+
+## Scope enforcement
+
+The token is scope-gated. Every tool surface is checked server-side in Odysseus,
+so even if Claude tries to call a forbidden endpoint, it gets `403` until the
+user enables the matching toggle in Settings > Integrations > Claude Agent.