Add MongoDB Service to CI Workflows

- Introduced a MongoDB service in both `pr-test.yml` and `unit-test.yml` workflows to facilitate database testing.
- Configured MongoDB with environment variables for root username, password, and database name, enhancing test environment setup.
- Updated `.gitignore` to exclude job logs for search agents, ensuring cleaner repository management.

.github/workflows/pr-test.yml

@@ -195,6 +195,15 @@ jobs:
           - "3021:3021"
           - "3022:3022"
 
+      mongodb:
+        image: mongo:6.0
+        ports:
+          - 27017:27017
+        env:
+          MONGO_INITDB_ROOT_USERNAME: root
+          MONGO_INITDB_ROOT_PASSWORD: 123456
+          MONGO_INITDB_DATABASE: test
+
     strategy:
       matrix:
         go: [1.24]

.github/workflows/unit-test.yml

@@ -202,6 +202,15 @@ jobs:
           - "3021:3021"
           - "3022:3022"
 
+      mongodb:
+        image: mongo:6.0
+        ports:
+          - 27017:27017
+        env:
+          MONGO_INITDB_ROOT_USERNAME: root
+          MONGO_INITDB_ROOT_PASSWORD: 123456
+          MONGO_INITDB_DATABASE: test
+
     strategy:
       matrix:
         go: [1.24]

.gitignore

@@ -51,3 +51,4 @@ openapi/*.md
 coverage.html
 agent/assistant/hook/*.test.md
 agent/search/TODO.md
+agent/search/job-logs.txt