fix: resolve TypeScript strict-mode gaps across API, store, and queue layers (#800 #801 #802 #803)

[NteinPrecious]

closes #800
closes #801
closes #802
closes #803

Summary

Resolves four TypeScript strict-mode findings that caused implicit any propagation and unsafe casts in the API and store layers.

#800 — Axios config module augmentation
Added src/types/axios.d.ts with a declare module 'axios' augmentation that declares _retry, _retryCount, _requestStartMs, and _timingFinish on InternalAxiosRequestConfig. These fields are now the single typed source of truth — no more as any casts needed anywhere that reads or writes them.

#801 — Generic response types for POST/PUT/PATCH
apiService.post, apiService.put, and apiService.patch in src/services/api/index.ts previously returned Promise<any>. Added <T = unknown> generic parameters so callers can supply the expected response type and catch API contract violations at compile time. Also added a typed patch method that was previously missing.

#802 — ApiClient interface for RequestQueue
Created src/types/apiClient.ts with an ApiClient interface defining the minimum HTTP contract (get, post, put, patch, delete, and callable-config overload) required by RequestQueue. Replaced all apiClient?: any parameters and the private apiClient: any | null field in requestQueue.ts with ApiClient. Passing an object without the required HTTP methods now fails at compile time instead of crashing at runtime.

#803 — Typed persist middleware error callback
The onRehydrateStorage callback in src/store/createStore.ts previously inferred the error parameter as any (implicitly, via the as Error cast). Replaced with an explicit (rehydratedState: T | undefined, error: Error | undefined) signature that matches the Zustand persist middleware contract. Added a warning log on corrupt-state detection to aid debugging.

Files changed

• src/types/axios.d.ts — new module augmentation file ([TypeScript] axios.config.ts extends AxiosRequestConfig without declaration merging for _retry and _retryCount #800)
• src/services/api/index.ts — generic post/put/patch ([TypeScript] api/index.ts POST/PUT/PATCH return Promise<any> — callers lose response type #801)
• src/types/apiClient.ts — new ApiClient interface ([TypeScript] requestQueue.ts accepts apiClient?: any — queue can process with wrong client type #802)
• src/services/api/requestQueue.ts — replace any with ApiClient ([TypeScript] requestQueue.ts accepts apiClient?: any — queue can process with wrong client type #802)
• src/store/createStore.ts — typed rehydration error callback ([TypeScript] createStore.ts missing type for persist middleware error callback parameter #803)

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[RUKAYAT-CODER]

Well done on the job so far!
Kindly resolve conflict

[RUKAYAT-CODER]

Thank you for contributing to the project