Initial commit MKD fixes

backend/migrations/create_pr_events.sql

@@ -0,0 +1,52 @@
+-- PR Мероприятия: pr_events, pr_event_assignees, pr_event_photos
+-- Таблица мероприятий
+CREATE TABLE IF NOT EXISTS pr_events (
+  id                    BIGSERIAL PRIMARY KEY,
+  title                 TEXT NOT NULL,
+  date                  DATE NOT NULL,
+  type                  VARCHAR(20) NOT NULL CHECK (type IN ('resident', 'internal')),
+  category              VARCHAR(20) NOT NULL CHECK (category IN ('holiday', 'eco', 'sport', 'training', 'meeting')),
+  status                VARCHAR(20) NOT NULL DEFAULT 'planned' CHECK (status IN ('planned', 'in_progress', 'completed', 'canceled')),
+  location              TEXT,
+  location_type         VARCHAR(20) CHECK (location_type IN ('building', 'office')),
+  location_building_id   VARCHAR(50) REFERENCES buildings(id) ON DELETE SET NULL,
+  attendees_count       INTEGER NOT NULL DEFAULT 0,
+  budget                NUMERIC(15, 2),
+  short_plan             TEXT,
+  announcement          TEXT,
+  created_at            TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at            TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  created_by            TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_pr_events_date ON pr_events(date DESC);
+CREATE INDEX IF NOT EXISTS idx_pr_events_status ON pr_events(status);
+CREATE INDEX IF NOT EXISTS idx_pr_events_type ON pr_events(type);
+CREATE INDEX IF NOT EXISTS idx_pr_events_location_building ON pr_events(location_building_id) WHERE location_building_id IS NOT NULL;
+
+-- Сотрудники, назначенные на помощь по мероприятию
+CREATE TABLE IF NOT EXISTS pr_event_assignees (
+  event_id    BIGINT NOT NULL REFERENCES pr_events(id) ON DELETE CASCADE,
+  employee_id VARCHAR(50) NOT NULL REFERENCES employees(id) ON DELETE CASCADE,
+  PRIMARY KEY (event_id, employee_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_pr_event_assignees_event ON pr_event_assignees(event_id);
+CREATE INDEX IF NOT EXISTS idx_pr_event_assignees_employee ON pr_event_assignees(employee_id);
+
+-- Фотоотчёт по мероприятию (привязка к дому/офису для внутренних)
+CREATE TABLE IF NOT EXISTS pr_event_photos (
+  id                    BIGSERIAL PRIMARY KEY,
+  event_id              BIGINT NOT NULL REFERENCES pr_events(id) ON DELETE CASCADE,
+  photo_url              TEXT NOT NULL,
+  caption                TEXT,
+  location_type          VARCHAR(20) CHECK (location_type IN ('building', 'office')),
+  location_building_id   VARCHAR(50) REFERENCES buildings(id) ON DELETE SET NULL,
+  created_at             TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_pr_event_photos_event ON pr_event_photos(event_id);
+
+COMMENT ON TABLE pr_events IS 'Мероприятия PR: для жителей и внутренние';
+COMMENT ON TABLE pr_event_assignees IS 'Сотрудники для помощи по мероприятию';
+COMMENT ON TABLE pr_event_photos IS 'Фотоотчёт по мероприятию';