fix: social_events API public + add availability table

- Make social_events GET endpoint public (was returning 401)
- Add WHERE active = TRUE filter to social_events query
- Create availability table for room date management

src/lib/schema.ts

@@ -221,6 +221,18 @@ export async function initSchema() {
   await db.query(`
     ALTER TABLE users ADD COLUMN IF NOT EXISTS last_name VARCHAR(100);
   `);
+
+  await db.query(`
+    CREATE TABLE IF NOT EXISTS availability (
+      id SERIAL PRIMARY KEY,
+      room_id INTEGER REFERENCES rooms(id) ON DELETE CASCADE,
+      date DATE NOT NULL,
+      status VARCHAR(20) NOT NULL DEFAULT 'available' CHECK (status IN ('available', 'booked', 'maintenance')),
+      price NUMERIC(10,2),
+      created_at TIMESTAMP DEFAULT NOW(),
+      UNIQUE(room_id, date)
+    );
+  `);
 }
 
 export async function migrateFromLegacyPlaces() {