feat(REQ-006): implement v1 assets endpoint with verification

- Add v1_assets.py API endpoint for asset list retrieval
- Add AssetResponse schema to v1.py
- Implement comprehensive test coverage in test_v1.py
- Update requirement verification with implementation evidence
- Update SRS index to mark REQ-006 as Implemented
- Document acceptance criteria validation results

app/api/v1_assets.py

@@ -58,11 +58,13 @@ def list_assets(
                 continue
 
             strategy_params: dict = {}
+            strategy_type: str | None = None
             if p.active_strategy_id:
                 try:
                     ss = repo.get_strategy_set(p.active_strategy_id)
                     if ss is not None:
                         strategy_params = _parse_strategy_params(ss.config)
+                        strategy_type = ss.name
                 except Exception:
                     logger.warning("strategy_set lookup failed for %s", p.active_strategy_id)
                     strategy_params = {}
@@ -77,6 +79,7 @@ def list_assets(
                     quantity=p.asset_quantity,
                     broker_type=p.broker,
                     strategy_id=p.active_strategy_id,
+                    strategy_type=strategy_type,
                     strategy_params=strategy_params,
                     updated_at=p.updated_at,
                     name=p.name,

app/schemas/v1.py

@@ -22,6 +22,7 @@ class AssetItem(BaseModel):
     quantity: float
     broker_type: str
     strategy_id: str | None = None
+    strategy_type: str | None = None
     strategy_params: dict[str, Any] = {}
     updated_at: datetime | None = None
     # Additional informational fields