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/orchestration/vector_store.py

@@ -6,8 +6,8 @@ from dataclasses import dataclass
 from datetime import datetime, timezone
 from typing import Any, Protocol
 
-from oclaw.platform.embeddings.embedding_client import EmbeddingClient
-from oclaw.platform.persistence.sqlite_store import SqliteStore
+from svc.embeddings.embedding_client import EmbeddingClient
+from svc.persistence.sqlite_store import SqliteStore
 
 
 def _utc_now_iso() -> str: