Finished medication tracking and UI enhancements

backend/src/db/schema.ts

@@ -295,6 +295,18 @@ export const ensureSchema = async (database: DatabaseClient = db) => {
       CHECK (end_date IS NULL OR end_date >= start_date)
     );
 
+    CREATE TABLE IF NOT EXISTS medication_administrations (
+      id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+      medication_id UUID NOT NULL REFERENCES medications(id) ON DELETE CASCADE,
+      bird_id UUID NOT NULL REFERENCES birds(id) ON DELETE CASCADE,
+      administered_on DATE NOT NULL,
+      status VARCHAR(20) NOT NULL CHECK (status IN ('administered', 'missed')),
+      notes VARCHAR(500),
+      created_by_user_id UUID REFERENCES users(id) ON DELETE SET NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+      UNIQUE (medication_id, administered_on)
+    );
+
     CREATE INDEX IF NOT EXISTS idx_weight_records_bird_recorded_on
       ON weight_records (bird_id, recorded_on DESC);
 
@@ -304,6 +316,9 @@ export const ensureSchema = async (database: DatabaseClient = db) => {
     CREATE INDEX IF NOT EXISTS idx_medications_bird_start_date
       ON medications (bird_id, start_date DESC);
 
+    CREATE INDEX IF NOT EXISTS idx_medication_administrations_bird_administered_on
+      ON medication_administrations (bird_id, administered_on DESC);
+
     DO $$
     BEGIN
       IF EXISTS (