fix(migrations): restore missing project chickin bootstrap steps

internal/database/migrations/20251020022357_create_project_flock_populations_table.up.sql

@@ -0,0 +1,60 @@
+CREATE TABLE IF NOT EXISTS project_flock_populations (
+    id BIGSERIAL PRIMARY KEY,
+    project_chickin_id BIGINT NOT NULL,
+    product_warehouse_id BIGINT NOT NULL,
+    total_qty NUMERIC(15, 3) NOT NULL,
+    total_used_qty NUMERIC(15, 3) DEFAULT 0,
+    notes TEXT,
+    created_by BIGINT NOT NULL,
+    created_at TIMESTAMPTZ DEFAULT now(),
+    updated_at TIMESTAMPTZ DEFAULT now(),
+    deleted_at TIMESTAMPTZ
+);
+
+DO $$
+BEGIN
+    IF to_regclass('project_chickins') IS NOT NULL THEN
+        ALTER TABLE project_flock_populations
+            ADD CONSTRAINT fk_project_flock_populations_chickin
+            FOREIGN KEY (project_chickin_id)
+            REFERENCES project_chickins(id)
+            ON DELETE RESTRICT ON UPDATE CASCADE;
+    END IF;
+
+    IF to_regclass('product_warehouses') IS NOT NULL THEN
+        ALTER TABLE project_flock_populations
+            ADD CONSTRAINT fk_project_flock_populations_warehouse
+            FOREIGN KEY (product_warehouse_id)
+            REFERENCES product_warehouses(id)
+            ON DELETE RESTRICT ON UPDATE CASCADE;
+    END IF;
+
+    IF to_regclass('users') IS NOT NULL THEN
+        ALTER TABLE project_flock_populations
+            ADD CONSTRAINT fk_project_flock_populations_created_by
+            FOREIGN KEY (created_by)
+            REFERENCES users(id)
+            ON DELETE RESTRICT ON UPDATE CASCADE;
+    END IF;
+END $$;
+
+CREATE INDEX IF NOT EXISTS idx_populations_chickin_id ON project_flock_populations (project_chickin_id)
+WHERE
+    deleted_at IS NULL;
+
+CREATE INDEX IF NOT EXISTS idx_populations_warehouse_id ON project_flock_populations (product_warehouse_id)
+WHERE
+    deleted_at IS NULL;
+
+CREATE INDEX IF NOT EXISTS idx_populations_created_by ON project_flock_populations (created_by);
+
+CREATE INDEX IF NOT EXISTS idx_populations_chickin_deleted ON project_flock_populations (
+    project_chickin_id,
+    deleted_at
+);
+
+CREATE INDEX IF NOT EXISTS idx_populations_deleted_at ON project_flock_populations (deleted_at);
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_populations_chickin_unique ON project_flock_populations (project_chickin_id)
+WHERE
+    deleted_at IS NULL;