fix(api): send array query params as repeated keys (#13457)

#### Description

- The generated API client now sends array query params as repeated keys
(`states=firing&states=pending`) instead of axios' default `states[]=`.
The backend binds only repeated keys, so a `states` filter sent through
a generated hook was ignored and every rule came back.
- The alert list page and the home page alerts card drop their own
requests that worked around this.
- `states` on `GET /api/v3/rules` is the only array query param in the
generated and AI assistant clients today, so no other request changes.

#### Issues closed by this PR

Closes https://github.com/SigNoz/pulse-pod/issues/719

frontend/src/api/generatedAPIInstance.ts

@@ -11,6 +11,8 @@ import axios, { AxiosError, AxiosRequestConfig } from 'axios';
 // generated API Instance
 const generatedAPIAxiosInstance = axios.create({
 	baseURL: ENVIRONMENT.baseURL,
+	// The backend binds repeated keys (`states=a&states=b`); axios' default sends `states[]=`.
+	paramsSerializer: { indexes: null },
 });
 
 let generatedAPIQueryKeyHeaderContext: Record<string, unknown> | undefined;

frontend/src/container/Home/AlertRules/useHomeAlertRules.ts

@@ -1,12 +1,10 @@
 import { useMemo } from 'react';
 import { useListRulesV3 } from 'api/generated/services/rules';
 import {
-	type ListRulesV3200,
 	type ListRulesV3Params,
 	RuletypesAlertStateDTO,
 	type RuletypesListableRuleDTO,
 } from 'api/generated/services/sigNoz.schemas';
-import { GeneratedAPIInstance } from 'api/generatedAPIInstance';
 
 const HOME_ALERT_RULES_LIMIT = 5;
 
@@ -23,18 +21,7 @@ interface HomeAlertRules {
 
 export function useHomeAlertRules(): HomeAlertRules {
 	const firing = useListRulesV3(FIRING_RULES_PARAMS, {
-		query: {
-			cacheTime: 0,
-			// The backend binds repeated `states=` keys; axios' default sends `states[]=`.
-			queryFn: ({ signal }) =>
-				GeneratedAPIInstance<ListRulesV3200>({
-					url: '/api/v3/rules',
-					method: 'GET',
-					params: FIRING_RULES_PARAMS,
-					paramsSerializer: { indexes: null },
-					signal,
-				}),
-		},
+		query: { cacheTime: 0 },
 	});
 	const firingRules = firing.data?.data.rules;
 	const latest = useListRulesV3(

frontend/src/container/ListAlertRules/useAlertRulesData.ts

@@ -3,13 +3,11 @@ import logEvent from 'api/common/logEvent';
 import { convertToApiError } from 'api/ErrorResponseHandlerForGeneratedAPIs';
 import { useListRulesV3 } from 'api/generated/services/rules';
 import type {
-	ListRulesV3200,
 	ListRulesV3Params,
 	RenderErrorResponseDTO,
 	RuletypesLabelPairDTO,
 } from 'api/generated/services/sigNoz.schemas';
 import type { AxiosError } from 'axios';
-import { GeneratedAPIInstance } from 'api/generatedAPIInstance';
 import { isUndefined } from 'lodash-es';
 
 import type { AlertRule } from './types';
@@ -35,18 +33,7 @@ export function useAlertRulesData(
 	const hasLoggedEvent = useRef(false);
 
 	const rulesResponse = useListRulesV3(params, {
-		query: {
-			keepPreviousData: true,
-			// The backend binds repeated `states=` keys; axios' default sends `states[]=`.
-			queryFn: ({ signal }) =>
-				GeneratedAPIInstance<ListRulesV3200>({
-					url: '/api/v3/rules',
-					method: 'GET',
-					params,
-					paramsSerializer: { indexes: null },
-					signal,
-				}),
-		},
+		query: { keepPreviousData: true },
 	});
 
 	const rules = useMemo(