refactor: root-package imports (svc/runtime/interfaces) and fix PYTHONPATH

- Rename platform/ to svc/ to avoid shadowing stdlib platform.
- Replace from oclaw.* with from svc/runtime/interfaces; update -m CLI paths.
- tests/conftest: prepend repo root to sys.path (no parent-folder package name).
- CI: paths and offline_eval script under repo root.
- Ops scripts: PYTHONPATH must be repo root for python -m runtime.* (fixes gateway/WhatsApp sidecar startup).
- Fix default oclaw.json path in tabular/file attachment limits; stabilize attachment test config.

Co-authored-by: Cursor <cursoragent@cursor.com>

runtime/tools/public/local_sdk.py

@@ -9,7 +9,7 @@ from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any
 
-from oclaw.runtime.tools.path_guard import resolve_workspace_path, truncate_text
+from runtime.tools.path_guard import resolve_workspace_path, truncate_text
 
 
 @dataclass(frozen=True)
@@ -80,14 +80,14 @@ class LocalAdapter:
             dbp = str(os.getenv("OPS_ASSISTANT_DB_PATH") or "").strip()
             try:
                 if not dbp:
-                    from oclaw.platform.config.paths import db_path
+                    from svc.config.paths import db_path
 
                     dbp = str(db_path() or "").strip()
             except Exception:
                 dbp = ""
             if dbp:
                 try:
-                    from oclaw.platform.persistence.sqlite_store import SqliteStore
+                    from svc.persistence.sqlite_store import SqliteStore
 
                     store = SqliteStore(dbp)
                     raw_db = str(store.get_setting("AIA_ENABLE_RUN_COMMAND") or "").strip()