fix(psa): use resources contains identifier for my tickets filter

CW resources field is a plain string of member identifiers (login names),
not a navigable object. resources/member/id was invalid syntax causing 403.

Now resolves the CW member identifier from the cached member list and
uses: resources contains '{identifier}' which is the correct condition.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/api/endpoints/integrations.py

@@ -387,8 +387,8 @@ async def search_tickets(
     from app.services.psa.registry import get_provider_for_account
     from app.services.psa.exceptions import PSAError
 
-    # Resolve assigned_to_me → member_id
-    member_id: str | None = None
+    # Resolve assigned_to_me → member_identifier (CW login name for resources contains filter)
+    member_identifier: str | None = None
     if assigned_to_me:
         conn_result = await db.execute(
             select(PsaConnection).where(
@@ -405,12 +405,23 @@ async def search_tickets(
                 )
             )
             mapping = mapping_result.scalar_one_or_none()
-            if mapping:
-                member_id = mapping.external_member_id
-            else:
+            if not mapping:
                 # No mapping for this user — return empty list
                 return []
 
+            from app.services.psa.registry import get_provider_for_account as _get_provider
+            from app.services.psa.exceptions import PSAError as _PSAError
+            try:
+                _provider = await _get_provider(current_user.account_id, db)
+                cw_members = await _provider.list_members()
+                matched = next((m for m in cw_members if m.id == mapping.external_member_id), None)
+                if matched:
+                    member_identifier = matched.identifier
+                else:
+                    return []
+            except _PSAError:
+                return []
+
     # Parse comma-separated board_ids
     parsed_board_ids: list[int] = []
     if board_ids:
@@ -426,7 +437,7 @@ async def search_tickets(
             board_id=board_id,
             status_id=status_id,
             include_closed=include_closed,
-            member_id=member_id,
+            member_identifier=member_identifier,
             unassigned=unassigned,
             board_ids=parsed_board_ids,
             page=page,

backend/app/services/psa/connectwise/provider.py

@@ -78,8 +78,8 @@ class ConnectWiseProvider(PSAProvider):
             conditions.append(f"status/id = {filters['status_id']}")
         if not filters.get("include_closed", False):
             conditions.append("closedFlag = false")
-        if filters.get("member_id") is not None:
-            conditions.append(f"resources/member/id = {filters['member_id']}")
+        if filters.get("member_identifier") is not None:
+            conditions.append(f"resources contains '{filters['member_identifier']}'")
         if filters.get("unassigned", False):
             conditions.append("resources = null")
         board_ids: list[int] = filters.get("board_ids") or []