[Config] Add coding guidelines and code-fixer agent

Major additions:
- Add CODING_GUIDELINES.md with "NO EMOJIS" rule
- Create code-fixer agent for automated violation fixes
- Add offline mode v2 hooks with local caching/queue
- Add periodic context save with invisible Task Scheduler setup
- Add agent coordination rules and database connection docs

Infrastructure:
- Update hooks: task-complete-v2, user-prompt-submit-v2
- Add periodic_save_check.py for auto-save every 5min
- Add PowerShell scripts: setup_periodic_save.ps1, update_to_invisible.ps1
- Add sync-contexts script for queue synchronization

Documentation:
- OFFLINE_MODE.md, PERIODIC_SAVE_INVISIBLE_SETUP.md
- Migration procedures and verification docs
- Fix flashing window guide

Updates:
- Update agent configs (backup, code-review, coding, database, gitea, testing)
- Update claude.md with coding guidelines reference
- Update .gitignore for new cache/queue directories

Status: Pre-automated-fixer baseline commit

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/hooks/task-complete

@@ -1,13 +1,14 @@
 #!/bin/bash
 #
-# Claude Code Hook: task-complete
+# Claude Code Hook: task-complete (v2 - with offline support)
 # Runs AFTER a task is completed
 # Saves conversation context to the database for future recall
+# FALLBACK: Queues locally when API is unavailable, syncs later
 #
 # Expected environment variables:
 #   CLAUDE_PROJECT_ID - UUID of the current project
 #   JWT_TOKEN - Authentication token for API
-#   CLAUDE_API_URL - API base URL (default: http://localhost:8000)
+#   CLAUDE_API_URL - API base URL (default: http://172.16.3.30:8001)
 #   CONTEXT_RECALL_ENABLED - Set to "false" to disable (default: true)
 #   TASK_SUMMARY - Summary of completed task (auto-generated by Claude)
 #   TASK_FILES - Files modified during task (comma-separated)
@@ -20,9 +21,15 @@ if [ -f "$CONFIG_FILE" ]; then
 fi
 
 # Default values
-API_URL="${CLAUDE_API_URL:-http://localhost:8000}"
+API_URL="${CLAUDE_API_URL:-http://172.16.3.30:8001}"
 ENABLED="${CONTEXT_RECALL_ENABLED:-true}"
 
+# Local storage paths
+CLAUDE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+QUEUE_DIR="$CLAUDE_DIR/context-queue"
+PENDING_DIR="$QUEUE_DIR/pending"
+UPLOADED_DIR="$QUEUE_DIR/uploaded"
+
 # Exit early if disabled
 if [ "$ENABLED" != "true" ]; then
     exit 0
@@ -42,13 +49,17 @@ else
     PROJECT_ID="$CLAUDE_PROJECT_ID"
 fi
 
-# Exit if no project ID or JWT token
-if [ -z "$PROJECT_ID" ] || [ -z "$JWT_TOKEN" ]; then
+# Exit if no project ID
+if [ -z "$PROJECT_ID" ]; then
     exit 0
 fi
 
+# Create queue directories if they don't exist
+mkdir -p "$PENDING_DIR" "$UPLOADED_DIR" 2>/dev/null
+
 # Gather task information
 TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+TIMESTAMP_FILENAME=$(date -u +"%Y%m%d_%H%M%S")
 GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo "unknown")
 GIT_COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo "none")
 
@@ -104,13 +115,6 @@ CONTEXT_PAYLOAD=$(cat <<EOF
 EOF
 )
 
-# POST to conversation-contexts endpoint
-RESPONSE=$(curl -s --max-time 5 \
-    -X POST "${API_URL}/api/conversation-contexts" \
-    -H "Authorization: Bearer ${JWT_TOKEN}" \
-    -H "Content-Type: application/json" \
-    -d "$CONTEXT_PAYLOAD" 2>/dev/null)
-
 # Update project state
 PROJECT_STATE_PAYLOAD=$(cat <<EOF
 {
@@ -126,15 +130,53 @@ PROJECT_STATE_PAYLOAD=$(cat <<EOF
 EOF
 )
 
-curl -s --max-time 5 \
-    -X POST "${API_URL}/api/project-states" \
-    -H "Authorization: Bearer ${JWT_TOKEN}" \
-    -H "Content-Type: application/json" \
-    -d "$PROJECT_STATE_PAYLOAD" 2>/dev/null >/dev/null
+# Try to POST to API if we have a JWT token
+API_SUCCESS=false
+if [ -n "$JWT_TOKEN" ]; then
+    RESPONSE=$(curl -s --max-time 5 -w "\n%{http_code}" \
+        -X POST "${API_URL}/api/conversation-contexts" \
+        -H "Authorization: Bearer ${JWT_TOKEN}" \
+        -H "Content-Type: application/json" \
+        -d "$CONTEXT_PAYLOAD" 2>/dev/null)
 
-# Log success (optional - comment out for silent operation)
-if [ -n "$RESPONSE" ]; then
+    HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
+    RESPONSE_BODY=$(echo "$RESPONSE" | sed '$d')
+
+    if [ "$HTTP_CODE" = "200" ] || [ "$HTTP_CODE" = "201" ]; then
+        API_SUCCESS=true
+
+        # Also update project state
+        curl -s --max-time 5 \
+            -X POST "${API_URL}/api/project-states" \
+            -H "Authorization: Bearer ${JWT_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "$PROJECT_STATE_PAYLOAD" 2>/dev/null >/dev/null
+    fi
+fi
+
+# If API call failed, queue locally
+if [ "$API_SUCCESS" = "false" ]; then
+    # Save context to pending queue
+    QUEUE_FILE="$PENDING_DIR/${PROJECT_ID}_${TIMESTAMP_FILENAME}_context.json"
+    echo "$CONTEXT_PAYLOAD" > "$QUEUE_FILE"
+
+    # Save project state to pending queue
+    STATE_QUEUE_FILE="$PENDING_DIR/${PROJECT_ID}_${TIMESTAMP_FILENAME}_state.json"
+    echo "$PROJECT_STATE_PAYLOAD" > "$STATE_QUEUE_FILE"
+
+    echo "⚠ Context queued locally (API unavailable) - will sync when online" >&2
+
+    # Try to sync in background (opportunistic)
+    if [ -n "$JWT_TOKEN" ]; then
+        bash "$(dirname "${BASH_SOURCE[0]}")/sync-contexts" >/dev/null 2>&1 &
+    fi
+else
     echo "✓ Context saved to database" >&2
+
+    # Trigger background sync of any queued items
+    if [ -n "$JWT_TOKEN" ]; then
+        bash "$(dirname "${BASH_SOURCE[0]}")/sync-contexts" >/dev/null 2>&1 &
+    fi
 fi
 
 exit 0