Initial template: Vue 3 + FastAPI + SQLite full-stack with K8s deployment

Extracted from oil project — business logic removed, auth/db/deploy infrastructure
generalized with APP_NAME placeholders.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/database.py

@@ -0,0 +1,62 @@
+import sqlite3
+import os
+import secrets
+
+DB_PATH = os.environ.get("DB_PATH", "/data/app.db")
+
+
+def get_db():
+    conn = sqlite3.connect(DB_PATH)
+    conn.row_factory = sqlite3.Row
+    conn.execute("PRAGMA journal_mode=WAL")
+    conn.execute("PRAGMA foreign_keys=ON")
+    return conn
+
+
+def init_db():
+    """Initialize database schema. Add your tables here."""
+    os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)
+    conn = get_db()
+    c = conn.cursor()
+    c.executescript("""
+        CREATE TABLE IF NOT EXISTS users (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            username TEXT UNIQUE NOT NULL,
+            password TEXT,
+            token TEXT UNIQUE NOT NULL,
+            role TEXT NOT NULL DEFAULT 'viewer',
+            display_name TEXT,
+            created_at TEXT DEFAULT (datetime('now'))
+        );
+        CREATE TABLE IF NOT EXISTS audit_log (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            user_id INTEGER,
+            action TEXT NOT NULL,
+            target_type TEXT,
+            target_id TEXT,
+            target_name TEXT,
+            detail TEXT,
+            created_at TEXT DEFAULT (datetime('now'))
+        );
+    """)
+
+    # Seed admin user if no users exist
+    count = c.execute("SELECT COUNT(*) FROM users").fetchone()[0]
+    if count == 0:
+        admin_token = os.environ.get("ADMIN_TOKEN", secrets.token_hex(24))
+        c.execute(
+            "INSERT INTO users (username, token, role, display_name) VALUES (?, ?, ?, ?)",
+            ("admin", admin_token, "admin", "Admin"),
+        )
+        print(f"[INIT] Admin user created. Token: {admin_token}")
+
+    conn.commit()
+    conn.close()
+
+
+def log_audit(conn, user_id, action, target_type=None, target_id=None, target_name=None, detail=None):
+    conn.execute(
+        "INSERT INTO audit_log (user_id, action, target_type, target_id, target_name, detail) "
+        "VALUES (?, ?, ?, ?, ?, ?)",
+        (user_id, action, target_type, str(target_id) if target_id else None, target_name, detail),
+    )