Clean up generated files and fix 6 dashboard bugs (#142)

* chore: gitignore local/generated files and remove from tracking

Remove user-specific files (MEMORY.md, user_profile.md, prompts.py)
from source control. Add patterns for credentials, backups, and
generated content to .gitignore.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: resolve 6 dashboard bugs — chat, /bugs, /swarm/events, WebSocket, marketplace, sidebar

1. Chat non-functional: CSRF middleware silently blocked HTMX POSTs.
   Added CSRF token transmission via hx-headers in base.html.

2. /bugs → 500: Route missing template vars (total, stats, filter_status).

3. /swarm/events → 500: Called .event_type.value on a plain str
   (SparkEvent.event_type is str, not enum). Also fixed timestamp
   and source field mismatches in the template.

4. WebSocket reconnect loop: No WS endpoint existed at /swarm/live,
   only an HTTP GET. Added @router.websocket("/live") using ws_manager.

5. Marketplace "Agent not found": Nav links /marketplace/ui matched
   the /{agent_id} catch-all. Added explicit /marketplace/ui route
   with enriched template context.

6. Agents sidebar "LOADING...": /swarm/agents/sidebar endpoint was
   missing. Added route returning the existing sidebar partial.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: restore src/timmy/prompts.py to source control

prompts.py is imported by timmy.agent and is production code,
not a user-local file. Re-add to tracking and remove from .gitignore.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Trip T <trip@local>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -17,6 +17,10 @@ env/
 .env
 .env.*
 !.env.example
+discord_credentials.txt
+
+# Backup / temp files
+*~
 
 # SQLite — never commit databases or WAL/SHM artifacts
 *.db
@@ -55,6 +59,19 @@ src/data/
 *.swo
 .claude/
 
+# Local content — user-specific or generated
+MEMORY.md
+memory/self/user_profile.md
+TIMMYTIME
+introduction.txt
+messages.txt
+morning_briefing.txt
+markdown_report.md
+data/timmy_soul.jsonl
+scripts/migrate_to_zeroclaw.py
+src/infrastructure/db_pool.py
+workspace/
+
 # macOS
 .DS_Store
 .AppleDouble