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/experts/productivity/kb_tools.py

@@ -3,10 +3,10 @@ from __future__ import annotations
 import hashlib
 from typing import Any
 
-from oclaw.platform.config.paths import db_path
-from oclaw.platform.embeddings.embedding_client import build_default_embedding_client
-from oclaw.platform.persistence.sqlite_store import SqliteStore
-from oclaw.runtime.tools.base import ToolSpec
+from svc.config.paths import db_path
+from svc.embeddings.embedding_client import build_default_embedding_client
+from svc.persistence.sqlite_store import SqliteStore
+from runtime.tools.base import ToolSpec
 
 
 def _chunk_id(source: str, text: str) -> str:
@@ -64,7 +64,7 @@ def kb_search_tool() -> ToolSpec:
             if not tenant_id or not query:
                 return {"ok": False, "error": "tenant_id and query are required"}
             store = SqliteStore(db_path())
-            from oclaw.runtime.orchestration.memory import retrieve_context
+            from runtime.orchestration.memory import retrieve_context
 
             rows = retrieve_context(store, query, limit=max(1, min(limit, 6)))
             filtered = [r for r in rows if str(r.get("source") or "").startswith(f"builtin:tenant:{tenant_id}:")]