feat: Initial v0.9 release with API Key authentication

## v0.9.20260325_144654

### Features
- API Key Authentication System
- Job Worker System
- V2 Backup Versioning

### Bug Fixes
- get_processor_results_by_job column mapping

Co-authored-by: OpenCode

docs/N8N_API_FIX_SUMMARY.md

@@ -0,0 +1,106 @@
+# n8n REST API Fix Summary
+
+## Issue
+n8n REST API was returning 404 errors for all endpoints (`/api/v1/workflows`, `/rest/workflows`, etc.)
+
+## Root Cause
+Port 5678 was occupied by the **n8n worker** process, preventing the main n8n instance from starting properly.
+
+## Solution
+
+### 1. Identified Port Conflict
+- Worker process was listening on port 5678 (same as main instance)
+- Main n8n couldn't start because port was in use
+
+### 2. Fixed Worker Configuration
+Updated `/Library/LaunchDaemons/com.momentry.n8n.worker.plist`:
+- Added `N8N_PORT=5680` to worker environment variables
+- Workers shouldn't need HTTP ports, but this prevents port conflict
+
+### 3. Restarted Services
+```bash
+# Kill all n8n processes
+sudo pkill -9 -f n8n
+
+# Start main n8n (now successfully binds to port 5678)
+sudo launchctl enable system/com.momentry.n8n.main
+sudo launchctl bootstrap system /Library/LaunchDaemons/com.momentry.n8n.main.plist
+```
+
+## Current Status
+
+### n8n Instance
+- **URL**: http://localhost:5678
+- **Version**: 2.3.5
+- **Status**: Running ✅
+- **API Enabled**: Yes ✅
+
+### API Key
+```
+eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJlNjdiY2UzOS1iY2RkLTRjMjEtYmMwYy0yODNhYmI3ZjVjMjMiLCJpc3MiOiJuOG4iLCJhdWQiOiJwdWJsaWMtYXBpIiwiaWF0IjoxNzc0MTk4NzgwfQ.zke_Qc-saILl_tcwXm2K3J4slCmaXnzCfxVbdVPPvCE
+```
+
+### MCP Configuration
+File: `~/.config/opencode/opencode.json`
+```json
+{
+  "$schema": "https://opencode.ai/config.json",
+  "mcp": {
+    "gitea": {
+      "type": "local",
+      "enabled": true,
+      "command": [
+        "/opt/homebrew/bin/gitea-mcp-server",
+        "-token", "<GITEA_TOKEN>",
+        "-host", "http://localhost:3000"
+      ]
+    },
+    "n8n": {
+      "type": "local",
+      "enabled": true,
+      "command": ["/opt/homebrew/bin/mcp-n8n"],
+      "environment": {
+        "N8N_BASE_URL": "http://localhost:5678",
+        "N8N_API_KEY": "<N8N_API_KEY>"
+      }
+    }
+  }
+}
+```
+
+## Verified Endpoints
+
+### List Workflows
+```bash
+curl -H "X-N8N-API-KEY: <API_KEY>" http://localhost:5678/api/v1/workflows
+```
+**Result**: ✅ 30 workflows returned
+
+### List Executions
+```bash
+curl -H "X-N8N-API-KEY: <API_KEY>" http://localhost:5678/api/v1/executions
+```
+**Result**: ✅ 100 executions returned
+
+## Next Steps
+
+1. **Start n8n Worker** (optional for MCP):
+   Workers handle job processing but aren't required for API access.
+
+2. **Test MCP Integration**:
+   Restart OpenCode to load the MCP configuration and test n8n integration.
+
+3. **Verify Workflow Management**:
+   - Create workflow via API
+   - Execute workflow
+   - Monitor execution status
+
+## Files Modified
+- `/Library/LaunchDaemons/com.momentry.n8n.worker.plist` - Added N8N_PORT=5680
+
+## API Documentation
+- Base URL: `http://localhost:5678/api/v1`
+- Authentication: Header `X-N8N-API-KEY: <token>`
+- Available endpoints: workflows, executions, credentials, users, etc.
+
+See full API reference: https://docs.n8n.io/api/