Add reputation actions feature to Falukant module

- Introduced new endpoints for retrieving and executing reputation actions in FalukantController and falukantRouter.
- Implemented service methods in FalukantService to handle reputation actions, including daily limits and action execution logic.
- Updated the frontend ReputationView component to display available actions and their details, including cost and potential reputation gain.
- Added translations for reputation actions in both German and English locales.
- Enhanced initialization logic to set up reputation action types in the database.

backend/migrations/20251220001000-add-reputation-actions.cjs

@@ -0,0 +1,47 @@
+/* eslint-disable */
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    // Typ-Tabelle (konfigurierbar ohne Code): falukant_type.reputation_action
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS falukant_type.reputation_action (
+        id serial PRIMARY KEY,
+        tr text NOT NULL UNIQUE,
+        cost integer NOT NULL CHECK (cost >= 0),
+        base_gain integer NOT NULL CHECK (base_gain >= 0),
+        decay_factor double precision NOT NULL CHECK (decay_factor > 0 AND decay_factor <= 1),
+        min_gain integer NOT NULL DEFAULT 0 CHECK (min_gain >= 0),
+        decay_window_days integer NOT NULL DEFAULT 7 CHECK (decay_window_days >= 1 AND decay_window_days <= 365)
+      );
+    `);
+
+    // Log-Tabelle: falukant_log.reputation_action
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS falukant_log.reputation_action (
+        id serial PRIMARY KEY,
+        falukant_user_id integer NOT NULL,
+        action_type_id integer NOT NULL,
+        cost integer NOT NULL CHECK (cost >= 0),
+        base_gain integer NOT NULL CHECK (base_gain >= 0),
+        gain integer NOT NULL CHECK (gain >= 0),
+        times_used_before integer NOT NULL CHECK (times_used_before >= 0),
+        action_timestamp timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP
+      );
+    `);
+
+    await queryInterface.sequelize.query(`
+      CREATE INDEX IF NOT EXISTS reputation_action_log_user_type_idx
+      ON falukant_log.reputation_action (falukant_user_id, action_type_id);
+    `);
+    await queryInterface.sequelize.query(`
+      CREATE INDEX IF NOT EXISTS reputation_action_log_ts_idx
+      ON falukant_log.reputation_action (action_timestamp);
+    `);
+  },
+
+  async down(queryInterface, Sequelize) {
+    await queryInterface.sequelize.query(`DROP TABLE IF EXISTS falukant_log.reputation_action;`);
+    await queryInterface.sequelize.query(`DROP TABLE IF EXISTS falukant_type.reputation_action;`);
+  },
+};
+
+