chore(dead-code): fix prod image, drop orphaned code, correct delete_rule doc

Drift-audit Group 7 (renamed/removed lingers) + Group 5 #9:

- docker-compose.prod.yml pulled fabledassistant:latest, a tag CI stopped
  publishing after the rename. Point it at fabledscribe:latest (the name CI
  and quickstart use). The internal DB name stays fabledassistant by design.
- Remove the unused hard-delete delete_note imports from the notes and tasks
  route modules (they delete via trash; the import was an attractive nuisance
  that bypassed soft-delete).
- delete_rule MCP tool: docstring/warning said 'permanently delete' but the
  body moves the rule to recoverable trash. Corrected to match.
- Delete services/calendar_sync.py: fully orphaned (zero importers) and it
  read Config attrs that no longer exist, so any re-wiring would crash.
- Remove dead services: notes.search_notes_for_context and logging.log_generation
  (zero callers; log_generation wrote a 'generation' category no stats/UI surface).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/fabledassistant/mcp/tools/rulebooks.py

@@ -322,7 +322,7 @@ async def update_rule(
 
 
 async def delete_rule(rule_id: int, confirmed: bool = False) -> dict:
-    """Permanently delete a rule. Requires confirmed=True."""
+    """Move a rule to the trash (recoverable). Requires confirmed=True."""
     uid = current_user_id()
     rule = await rulebooks_svc.get_rule(rule_id, uid)
     if rule is None:
@@ -330,8 +330,8 @@ async def delete_rule(rule_id: int, confirmed: bool = False) -> dict:
     if not confirmed:
         return {
             "warning": (
-                f"Rule {rule_id} ('{rule.title}') will be permanently deleted. "
-                f"Pass confirmed=True to proceed."
+                f"Rule {rule_id} ('{rule.title}') will be moved to the trash "
+                f"(recoverable via restore). Pass confirmed=True to proceed."
             ),
             "confirmed_required": True,
         }