feat: Replace SQLite with per-user JSON storage (fixes #2)

- Add storage.py with load_user(), save_user(), next_bounty_id()
- Rewrite commands.py to use JSON storage (simplified)
- Remove db.py, schema.sql, cron.py, test_db.py
- Update SPEC.md to reflect new architecture
- Admin model removed (anyone can add, creator only can edit/delete)
- No reminders in v1

apps/telegram-bot/bot.py

@@ -12,7 +12,6 @@ from telegram.ext import (
     filters,
 )
 
-import db
 import commands
 
 logging.basicConfig(
@@ -21,14 +20,12 @@ logging.basicConfig(
 )
 log = logging.getLogger(__name__)
 
-# Token from environment or config
 BOT_TOKEN = os.environ.get("JIGAIDO_BOT_TOKEN", "")
 
 
 def build_app() -> Application:
     app = Application.builder().token(BOT_TOKEN).build()
 
-    # Core commands
     app.add_handler(CommandHandler("start", commands.cmd_start))
     app.add_handler(CommandHandler("help", commands.cmd_help))
     app.add_handler(CommandHandler("bounty", commands.cmd_bounty))
@@ -41,22 +38,22 @@ def build_app() -> Application:
     app.add_handler(CommandHandler("admin_add", commands.cmd_admin_add))
     app.add_handler(CommandHandler("admin_remove", commands.cmd_admin_remove))
 
-    # Fallback: unknown commands
     app.add_handler(MessageHandler(filters.COMMAND, commands.cmd_help))
 
     return app
 
 
 async def post_init(app: Application) -> None:
-    # Set bot commands in menu
-    await app.bot.set_my_commands([
-        ("bounty", "List bounties"),
-        ("my", "Your tracked bounties"),
-        ("add", "Add a bounty"),
-        ("track", "Track a bounty"),
-        ("untrack", "Stop tracking"),
-        ("help", "Show help"),
-    ])
+    await app.bot.set_my_commands(
+        [
+            ("bounty", "List bounties"),
+            ("my", "Your tracked bounties"),
+            ("add", "Add a bounty"),
+            ("track", "Track a bounty"),
+            ("untrack", "Stop tracking"),
+            ("help", "Show help"),
+        ]
+    )
 
 
 def main() -> None:
@@ -64,9 +61,6 @@ def main() -> None:
         log.error("JIGAIDO_BOT_TOKEN environment variable not set.")
         sys.exit(1)
 
-    db.init_db()
-    log.info("Database initialized.")
-
     app = build_app()
     app.post_init = post_init