refactor: migrate to eslint flat config and format codebase with prettier

- Remove legacy .eslintrc.cjs and .eslintignore
- Add eslint.config.js with flat config, security rules (no-eval, no-implied-eval, no-new-func, no-script-url)
- Add .prettierrc and .prettierignore
- Format entire codebase with prettier

src/api/polls.ts

@@ -1,85 +1,85 @@
-import apiClient from './client'
+import apiClient from './client';
 
 export interface PollOption {
-  id: number
-  text: string
-  order: number
+  id: number;
+  text: string;
+  order: number;
 }
 
 export interface PollQuestion {
-  id: number
-  text: string
-  order: number
-  options: PollOption[]
+  id: number;
+  text: string;
+  order: number;
+  options: PollOption[];
 }
 
 export interface PollInfo {
-  id: number
-  response_id: number
-  title: string
-  description: string | null
-  total_questions: number
-  answered_questions: number
-  is_completed: boolean
-  reward_amount: number | null
+  id: number;
+  response_id: number;
+  title: string;
+  description: string | null;
+  total_questions: number;
+  answered_questions: number;
+  is_completed: boolean;
+  reward_amount: number | null;
 }
 
 export interface PollStartResponse {
-  response_id: number
-  current_question_index: number
-  total_questions: number
-  question: PollQuestion
+  response_id: number;
+  current_question_index: number;
+  total_questions: number;
+  question: PollQuestion;
 }
 
 export interface PollAnswerResponse {
-  success: boolean
-  is_completed: boolean
-  next_question: PollQuestion | null
-  current_question_index: number | null
-  total_questions: number
-  reward_granted: number | null
-  message: string | null
+  success: boolean;
+  is_completed: boolean;
+  next_question: PollQuestion | null;
+  current_question_index: number | null;
+  total_questions: number;
+  reward_granted: number | null;
+  message: string | null;
 }
 
 export interface PollsCountResponse {
-  count: number
+  count: number;
 }
 
 export const pollsApi = {
   // Get count of available polls
   getCount: async (): Promise<PollsCountResponse> => {
-    const response = await apiClient.get<PollsCountResponse>('/cabinet/polls/count')
-    return response.data
+    const response = await apiClient.get<PollsCountResponse>('/cabinet/polls/count');
+    return response.data;
   },
 
   // Get available polls
   getPolls: async (): Promise<PollInfo[]> => {
-    const response = await apiClient.get<PollInfo[]>('/cabinet/polls')
-    return response.data
+    const response = await apiClient.get<PollInfo[]>('/cabinet/polls');
+    return response.data;
   },
 
   // Get poll details
   getPollDetails: async (responseId: number): Promise<PollInfo> => {
-    const response = await apiClient.get<PollInfo>(`/cabinet/polls/${responseId}`)
-    return response.data
+    const response = await apiClient.get<PollInfo>(`/cabinet/polls/${responseId}`);
+    return response.data;
   },
 
   // Start or continue poll
   startPoll: async (responseId: number): Promise<PollStartResponse> => {
-    const response = await apiClient.post<PollStartResponse>(`/cabinet/polls/${responseId}/start`)
-    return response.data
+    const response = await apiClient.post<PollStartResponse>(`/cabinet/polls/${responseId}/start`);
+    return response.data;
   },
 
   // Answer a question
   answerQuestion: async (
     responseId: number,
     questionId: number,
-    optionId: number
+    optionId: number,
   ): Promise<PollAnswerResponse> => {
     const response = await apiClient.post<PollAnswerResponse>(
       `/cabinet/polls/${responseId}/questions/${questionId}/answer`,
-      { option_id: optionId }
-    )
-    return response.data
+      { option_id: optionId },
+    );
+    return response.data;
   },
-}
+};