feat(db): migrate accounts/credentials/platforms to v2 schema

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/db/connection.py

@@ -14,7 +14,7 @@ import sqlite3
 import time
 from typing import Optional
 
-from db.schema import ALL_DDL, SCHEMA_VERSION
+from db.schema import SCHEMA_VERSION, ensure_schema
 from util.constants import SKILL_SLUG
 from util.logging_config import get_skill_logger
 from util.runtime_paths import get_db_path
@@ -67,13 +67,6 @@ def _check_schema_version(conn: sqlite3.Connection) -> int:
     return int(row[0]) if row else 0
 
 
-def _create_new_tables(conn: sqlite3.Connection) -> None:
-    """Execute ALL_DDL (all CREATE TABLE/INDEX IF NOT EXISTS)."""
-    cur = conn.cursor()
-    cur.executescript(ALL_DDL)
-    conn.commit()
-
-
 def init_db() -> None:
     """Idempotent: migrate if needed, create tables, set schema version."""
     log = get_skill_logger()
@@ -88,10 +81,14 @@ def init_db() -> None:
                 backed_up = _backup_old_accounts(conn)
                 if backed_up:
                     log.info("schema_init_backup_done old_version=%s", old_version)
-            _create_new_tables(conn)
-            cur = conn.cursor()
-            cur.execute(f"PRAGMA user_version = {SCHEMA_VERSION}")
-            conn.commit()
+
+        ensure_schema(conn)
+
+        cur = conn.cursor()
+        cur.execute(f"PRAGMA user_version = {SCHEMA_VERSION}")
+        conn.commit()
+
+        if old_version < SCHEMA_VERSION:
             log.info(
                 "schema_init_done version=%s migrated_from=%s",
                 SCHEMA_VERSION,
@@ -99,12 +96,6 @@ def init_db() -> None:
             )
         else:
             log.info("schema_init_uptodate version=%s", SCHEMA_VERSION)
-
-        # Ensure all tables exist even if schema version matches
-        _create_new_tables(conn)
-        cur = conn.cursor()
-        cur.execute(f"PRAGMA user_version = {SCHEMA_VERSION}")
-        conn.commit()
     except Exception:
         log.exception("schema_init_failure")
         raise