Add waiting system application files

- Add main application files (main.py, models.py, schemas.py, etc.)
- Add routers for all features (waiting, attendance, members, etc.)
- Add HTML templates for admin and user interfaces
- Add migration scripts and utility files
- Add Docker configuration
- Add documentation files
- Add .gitignore to exclude database and cache files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

verify_ranking_index.py

@@ -0,0 +1,59 @@
+import sqlite3
+import os
+from datetime import date
+
+DB_PATH = 'waiting_system.db'
+
+def verify_query_plan():
+    if not os.path.exists(DB_PATH):
+        print(f"Database file '{DB_PATH}' not found.")
+        return
+
+    conn = sqlite3.connect(DB_PATH)
+    cursor = conn.cursor()
+
+    # Query from routers/statistics.py get_attendance_ranking logic
+    # Simplified for EXPLAIN query
+    
+    # We want to see if it uses the indices: ix_waiting_list_status, ix_waiting_list_attended_at, ix_waiting_list_member_id
+    sql = """
+    EXPLAIN QUERY PLAN
+    SELECT 
+        m.id, m.name, m.phone, s.name, count(w.id), max(w.attended_at)
+    FROM 
+        members m
+    JOIN 
+        waiting_list w ON m.id = w.member_id
+    JOIN 
+        store s ON w.store_id = s.id
+    WHERE 
+        w.status = 'attended' 
+        AND w.attended_at BETWEEN '2024-01-01 00:00:00' AND '2024-12-31 23:59:59'
+    GROUP BY 
+        m.id, m.name, m.phone, s.name
+    ORDER BY 
+        count(w.id) DESC
+    """
+    
+    print("Executing EXPLAIN QUERY PLAN...")
+    try:
+        cursor.execute(sql)
+        rows = cursor.fetchall()
+        for row in rows:
+            print(row)
+            
+        # Check against expected usage
+        # We look for "USING INDEX" and the index names
+        output = str(rows)
+        if "ix_waiting_list_status" in output or "ix_waiting_list_attended_at" in output or "ix_waiting_list_member_id" in output:
+             print("\nSUCCESS: Query is using the new indexes.")
+        else:
+             print("\nWARNING: Query might NOT be using the new indexes explicitly in the plan (SQLite might optimize differently). Check output detail.")
+             
+    except Exception as e:
+        print(f"Error: {e}")
+    finally:
+        conn.close()
+
+if __name__ == "__main__":
+    verify_query_plan()