feat: make LLM timeout configurable (default 5min)

New flag: --llm-timeout / LLM_TIMEOUT (seconds, default 300)
New builder: llmClient.WithTimeout(duration)
Composite action: new timeout input

Keeps 5 minutes as the sensible default but allows tuning for
larger repos or slower models.

.gitea/actions/review/action.yml

@@ -46,9 +46,25 @@ inputs:
     required: false
     default: 'README.md'
   temperature:
-    description: 'LLM temperature (0 = server default)'
+  timeout:
+    description: 'LLM request timeout in seconds (default 300)'
     required: false
+    default: '300'
+    description: 'LLM temperature (0 = server default)'
+  timeout:
+    description: 'LLM request timeout in seconds (default 300)'
+    required: false
+    default: '300'
+    required: false
+  timeout:
+    description: 'LLM request timeout in seconds (default 300)'
+    required: false
+    default: '300'
     default: '0'
+  timeout:
+    description: 'LLM request timeout in seconds (default 300)'
+    required: false
+    default: '300'
   version:
     description: 'review-bot version to install (e.g. v0.1.0, defaults to latest)'
     required: false
@@ -134,6 +150,7 @@ runs:
         PATTERNS_REPO: ${{ inputs.patterns-repo }}
         PATTERNS_FILES: ${{ inputs.patterns-files }}
         LLM_TEMPERATURE: ${{ inputs.temperature }}
+        LLM_TIMEOUT: ${{ inputs.timeout }}
       run: |
         ARGS=""
         if [ "${{ inputs.dry-run }}" = "true" ]; then