fix: resolve CI failures — lint errors, pytz in redis, lockfile mismatch

- Remove unused imports: get_update_memory_messages, get_fact_retrieval_messages
- Fix pytz.timezone("US/Pacific") → timezone.utc in redis vector store
- Remove unused entity_types variable in test_entity_extraction
- Regenerate pnpm-lock.yaml after neo4j-driver removal

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mem0-ts/pnpm-lock.yaml

@@ -59,9 +59,6 @@ importers:
       natural:
         specifier: ^8.0.1
         version: 8.1.1
-      neo4j-driver:
-        specifier: ^5.28.1
-        version: 5.28.1
       ollama:
         specifier: ^0.5.14
         version: 0.5.14
@@ -1127,9 +1124,6 @@ packages:
   buffer@5.7.1:
     resolution: {integrity: sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==}
 
-  buffer@6.0.3:
-    resolution: {integrity: sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==}
-
   bundle-name@4.1.0:
     resolution: {integrity: sha512-tjwM5exMg6BGRI+kNmTntNsvdZS1X8BFYS6tnJ2hdH0kVxM6/eVZ2xy+FqStSWvYmtfFMDLIxurorHwDKfDz5Q==}
     engines: {node: '>=18'}
@@ -2281,15 +2275,6 @@ packages:
     resolution: {integrity: sha512-8Ofs/AUQh8MaEcrlq5xOX0CQ9ypTF5dl78mjlMNfOK08fzpgTHQRQPBxcPlEtIw0yRpws+Zo/3r+5WRby7u3Gg==}
     engines: {node: '>= 0.6'}
 
-  neo4j-driver-bolt-connection@5.28.1:
-    resolution: {integrity: sha512-nY8GBhjOW7J0rDtpiyJn6kFdk2OiNVZZhZrO8//mwNXnf5VQJ6HqZQTDthH/9pEaX0Jvbastz1xU7ZL8xzqY0w==}
-
-  neo4j-driver-core@5.28.1:
-    resolution: {integrity: sha512-14vN8TlxC0JvJYfjWic5PwjsZ38loQLOKFTXwk4fWLTbCk6VhrhubB2Jsy9Rz+gM6PtTor4+6ClBEFDp1q/c8g==}
-
-  neo4j-driver@5.28.1:
-    resolution: {integrity: sha512-jbyBwyM0a3RLGcP43q3hIxPUPxA+1bE04RovOKdNAS42EtBMVCKcPSeOvWiHxgXp1ZFd0a8XqK+7LtguInOLUg==}
-
   node-abi@3.74.0:
     resolution: {integrity: sha512-c5XK0MjkGBrQPGYG24GBADZud0NCbznxNx0ZkS+ebUTrmV1qTDxPxSL8zEAPURXSbLRWVexxmP4986BziahL5w==}
     engines: {node: '>=10'}
@@ -2714,9 +2699,6 @@ packages:
   run-parallel@1.2.0:
     resolution: {integrity: sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==}
 
-  rxjs@7.8.2:
-    resolution: {integrity: sha512-dhKf903U/PQZY6boNNtAGdWbG85WAbjT/1xYoZIC7FAY0yWapOBQVsVrDl58W86//e1VpMNBtRV4MaXfdMySFA==}
-
   safe-buffer@5.2.1:
     resolution: {integrity: sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==}
 
@@ -4410,11 +4392,6 @@ snapshots:
       base64-js: 1.5.1
       ieee754: 1.2.1
 
-  buffer@6.0.3:
-    dependencies:
-      base64-js: 1.5.1
-      ieee754: 1.2.1
-
   bundle-name@4.1.0:
     dependencies:
       run-applescript: 7.1.0
@@ -5746,20 +5723,6 @@ snapshots:
 
   negotiator@1.0.0: {}
 
-  neo4j-driver-bolt-connection@5.28.1:
-    dependencies:
-      buffer: 6.0.3
-      neo4j-driver-core: 5.28.1
-      string_decoder: 1.3.0
-
-  neo4j-driver-core@5.28.1: {}
-
-  neo4j-driver@5.28.1:
-    dependencies:
-      neo4j-driver-bolt-connection: 5.28.1
-      neo4j-driver-core: 5.28.1
-      rxjs: 7.8.2
-
   node-abi@3.74.0:
     dependencies:
       semver: 7.7.1
@@ -6197,10 +6160,6 @@ snapshots:
     dependencies:
       queue-microtask: 1.2.3
 
-  rxjs@7.8.2:
-    dependencies:
-      tslib: 2.8.1
-
   safe-buffer@5.2.1: {}
 
   safe-stable-stringify@2.5.0: {}