fix: pre-liberation review — frames dir, wigle config GET, debug redis-keys endpoint

CRITICAL:
- frames.py: FRAMES_DIR corrected to /tmp/adacam/pics
- frames.py: graceful handling when capture not started

IMPORTANT:
- wigle.py: added GET /api/1/wigle/config endpoint for Varroa
- app.py: added GET /api/1/debug/redis-keys endpoint for GPS troubleshooting
- install.sh: removed python validation that runs from wrong directory

adacam_api/routes/frames.py

@@ -5,18 +5,36 @@ from flask import Blueprint, jsonify
 
 bp = Blueprint("frames", __name__, url_prefix="/api/1/recording")
 
-FRAMES_DIR = "/tmp/recording/pics"
+FRAMES_DIR = "/tmp/adacam/pics"
 
 
 @bp.route("/frames/latest", methods=["GET"])
 def latest_frame():
     """Get path to most recent frame file."""
+    # Handle case where capture hasn't started yet
+    if not os.path.exists(FRAMES_DIR):
+        return jsonify({'frames': [], 'message': 'capture not started'}), 200
+    
     if not os.path.isdir(FRAMES_DIR):
-        return jsonify({"error": "No frames directory"}), 404
+        return jsonify({"error": "Frames directory invalid"}), 500
     
     files = glob.glob(os.path.join(FRAMES_DIR, "*"))
     if not files:
-        return jsonify({"error": "No frames available"}), 404
+        return jsonify({'frames': [], 'message': 'no frames captured yet'}), 200
     
     latest = max(files, key=os.path.getmtime)
     return jsonify({"path": latest})
+
+
+@bp.route("/frames", methods=["GET"])
+def list_frames():
+    """List all available frames."""
+    if not os.path.exists(FRAMES_DIR):
+        return jsonify({'frames': [], 'message': 'capture not started'})
+    
+    files = glob.glob(os.path.join(FRAMES_DIR, "*"))
+    files.sort(key=os.path.getmtime, reverse=True)
+    return jsonify({
+        'frames': files[:100],  # limit to 100 most recent
+        'total': len(files)
+    })