feat: Add v1 detection to installer

- Detect v1 installation (folder, cron, systemd service)
- Warn user that upgrade is not supported
- Explain removal steps clearly
- Allow continue-at-own-risk option
- Exit if user declines

install.py

@@ -269,6 +269,73 @@ def write_config():
     
     return config_path
 
+def detect_v1():
+    """Detect if TrueRecall v1 is installed and warn user."""
+    v1_indicators = []
+    
+    # Check for v1 folder
+    v1_paths = [
+        Path.home() / ".openclaw" / "workspace" / ".projects" / "true-recall",
+        Path.home() / ".openclaw" / "workspace" / ".projects" / "true-recall" / "tr-daily",
+    ]
+    for p in v1_paths:
+        if p.exists():
+            v1_indicators.append(f"Found v1 folder: {p}")
+    
+    # Check for v1 cron jobs
+    cron_file = Path.home() / ".openclaw" / "tr-daily" / "crontab.txt"
+    if cron_file.exists():
+        v1_indicators.append(f"Found v1 cron file: {cron_file}")
+    
+    # Check for v1 systemd service
+    v1_service_paths = [
+        Path("/etc/systemd/system/memories-qdrant.service"),
+        Path.home() / ".config" / "systemd" / "user" / "memories-qdrant.service",
+    ]
+    for s in v1_service_paths:
+        if s.exists():
+            v1_indicators.append(f"Found v1 service: {s}")
+    
+    if not v1_indicators:
+        return False
+    
+    print("\n" + "=" * 60)
+    print("⚠️  TRUE-RECALL V1 DETECTED")
+    print("=" * 60)
+    print("\nTrueRecall v1 is already installed on this system:")
+    for indicator in v1_indicators:
+        print(f"  • {indicator}")
+    
+    print("\n⚠️  UPGRADE NOT SUPPORTED")
+    print("-" * 60)
+    print("TrueRecall v2 cannot upgrade from v1 automatically.")
+    print("You MUST remove v1 completely before installing v2.")
+    print("\nTo remove v1:")
+    print("  1. Stop v1 services: sudo systemctl stop memories-qdrant")
+    print("  2. Remove v1 cron jobs from crontab")
+    print("  3. Archive or delete v1 folder: ~/.openclaw/workspace/.projects/true-recall/")
+    print("  4. v1 data in Qdrant 'memories' collection will remain (separate from v2)")
+    
+    print("\n" + "-" * 60)
+    print("If you continue WITHOUT removing v1:")
+    print("  • Both v1 and v2 may run simultaneously")
+    print("  • Duplicate cron jobs may cause conflicts")
+    print("  • System resource usage will be doubled")
+    print("  • Data integrity is NOT guaranteed")
+    print("=" * 60)
+    
+    while True:
+        choice = input("\nContinue installation at your own risk? [y/N]: ").strip().lower()
+        if choice in ("y", "yes"):
+            print("\n⚠️  Proceeding with installation — v1 conflicts possible.")
+            return True
+        elif choice in ("n", "no", ""):
+            print("\n❌ Installation cancelled.")
+            print("Please remove v1 first, then run this installer again.")
+            return False
+        else:
+            print("Invalid choice. Enter 'y' to continue or 'n' to abort.")
+
 def show_summary():
     """Display configuration summary."""
     print("\n" + "=" * 60)
@@ -300,6 +367,10 @@ def main():
     print("TrueRecall v2 - Interactive Installation")
     print("=" * 60)
     
+    # Check for v1
+    if not detect_v1():
+        sys.exit(1)
+    
     # Mode selection
     while True:
         print("\nSelect installation mode:")