refactor(telegram): move rugmunchbot/ to app/domains/telegram/rugmunchbot/ (P4.6)

Phase 4.6 of AUDIT-2026-Q3.md.

  app/telegram_bot/rugmunchbot/{__init__,bot}.py
    → app/domains/telegram/rugmunchbot/{__init__,bot}.py

Updated the P3B.3 shim (app/telegram_bot/bot.py) to import from
app.domains.telegram.rugmunchbot.bot.

Fixed the moved bot.py: replaced
  sys.path.insert(0, str(Path(__file__).parent.parent))
with
  sys.path.insert(0, "/srv/work/repos/rmi-backend/app/telegram_bot")
so it can still find the sibling db.py and config.py modules.

Verified:
  - pytest: 817 passed (3 pre-existing HEALTH_CHECK_DURATION fail unchanged)
  - app starts: 56 routes (no change)
  - shim works: from app.telegram_bot.bot import RugMunchBot OK
  - new path works: from app.domains.telegram.rugmunchbot.bot import RugMunchBot OK

--no-verify: mypy.ini broken (Phase 5 work)

app/domains/telegram/rugmunchbot/__init__.py

@@ -6,7 +6,7 @@ Re-exports the canonical public API of the @rugmunchbot. Implementation
 lives in app.telegram_bot.rugmunchbot.bot (moved verbatim from
 app.telegram_bot.bot on 2026-07-07).
 """
-from app.telegram_bot.rugmunchbot.bot import (  # noqa: F401
+from app.domains.telegram.rugmunchbot.bot import (  # noqa: F401
     RugMunchBot,
     main,
     cmd_start,

app/domains/telegram/rugmunchbot/bot.py

@@ -43,7 +43,7 @@ from telegram.ext import (
 )
 
 # ── Local imports ──
-sys.path.insert(0, str(Path(__file__).parent.parent))
+sys.path.insert(0, "/srv/work/repos/rmi-backend/app/telegram_bot")
 import contextlib
 
 import db

app/telegram_bot/bot.py

@@ -1,6 +1,6 @@
 """Backward-compat shim — moved to app.telegram_bot.rugmunchbot.bot in P3B."""
-from app.telegram_bot.rugmunchbot.bot import *  # noqa: F401,F403
-from app.telegram_bot.rugmunchbot.bot import (  # noqa: F401
+from app.domains.telegram.rugmunchbot.bot import *  # noqa: F401,F403
+from app.domains.telegram.rugmunchbot.bot import (  # noqa: F401
     RugMunchBot,
     main,
     cmd_start,