feat: P2.8 Resources/Equipment Booking (PostgreSQL + VNCdirectory)

- PostgreSQL schema: resources + resources_bookings tables with indexes
- Server-side client with PG pool + in-memory fallback for dev
- API routes: list, get, availability check, book, cancel
- Resource store (Zustand) for client-side state
- ResourcePicker component: type filter, search, availability dots
- Integrated into event-modal: auto-book on save, auto-cancel on delete
- Integrated into free-busy-view: resource availability rows

lib/resources/schema.sql

@@ -0,0 +1,29 @@
+CREATE TABLE IF NOT EXISTS resources (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  tenant_id UUID NOT NULL,
+  name TEXT NOT NULL,
+  type TEXT NOT NULL CHECK (type IN ('room', 'vehicle', 'equipment', 'other')),
+  location TEXT,
+  capacity INTEGER,
+  description TEXT,
+  contact_email TEXT,
+  is_active BOOLEAN DEFAULT true,
+  metadata JSONB DEFAULT '{}',
+  created_at TIMESTAMPTZ DEFAULT NOW(),
+  updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS resources_bookings (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  resource_id UUID NOT NULL REFERENCES resources(id) ON DELETE CASCADE,
+  event_id TEXT,
+  start_time TIMESTAMPTZ NOT NULL,
+  end_time TIMESTAMPTZ NOT NULL,
+  booked_by TEXT NOT NULL,
+  created_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_resources_tenant ON resources(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_resources_type ON resources(type);
+CREATE INDEX IF NOT EXISTS idx_bookings_resource_time ON resources_bookings(resource_id, start_time, end_time);
+CREATE INDEX IF NOT EXISTS idx_bookings_time ON resources_bookings(start_time, end_time);