Enhance tag management with cooldown feature and related updates

- Added a `cooldownSeconds` field to the `Tag` model, allowing for customizable cooldown periods between tag responses.
- Updated tag command handling to incorporate cooldown logic, preventing spam and improving user experience.
- Enhanced the WebUI to support cooldown configuration for tags, including input validation and localization for cooldown messages.
- Refactored tag-related service functions to manage cooldowns effectively, ensuring accurate tracking and enforcement.
- Improved localization for new cooldown-related messages in both English and German.

packages/shared/src/dashboard.test.ts

@@ -157,6 +157,19 @@ describe('dashboard schemas', () => {
       allowedChannelIds: []
     });
     expect(parsed.name).toBe('rules');
+    expect(parsed.cooldownSeconds).toBe(15);
+  });
+
+  it('accepts custom tag cooldown', () => {
+    const parsed = TagDashboardCreateSchema.parse({
+      name: 'rules',
+      content: 'Please read the rules',
+      responseType: 'TEXT',
+      cooldownSeconds: 30,
+      allowedRoleIds: [],
+      allowedChannelIds: []
+    });
+    expect(parsed.cooldownSeconds).toBe(30);
   });
 
   it('validates starboard patches', () => {