[Enhancement] Add a `TypeScript strict` follow-through pass for `noUncheckedIndexedAccess` and `exactOptionalPropertyTypes`

[RUKAYAT-CODER]

Overview

tsconfig.json enables strict: true but not noUncheckedIndexedAccess or exactOptionalPropertyTypes. The codebase has patterns that both would catch: RATE_LIMIT_DELAYS[delayIndex] || RATE_LIMIT_DELAYS[RATE_LIMIT_DELAYS.length - 1] in axios.config.ts guards an index access with ||, which noUncheckedIndexedAccess would surface properly; and there are 25 TS18046 (is of type unknown) plus 55 as any casts in src/ indicating the current strictness is already being worked around. This should follow the 520-error cleanup rather than precede it.

Specifications

Features:

• noUncheckedIndexedAccess enabled after the existing error backlog is cleared
• exactOptionalPropertyTypes evaluated and enabled if the churn is acceptable
• The 55 as any casts reduced

Tasks:

• Complete the existing type-error cleanup first
• Enable each flag in isolation and measure the new error count
• Fix or explicitly suppress the resulting errors
• Track as any usage with a lint rule and a decreasing budget

Impacted Files:

• tsconfig.json
• src/

Acceptance Criteria

• Both flags are enabled with a clean type check
• as any usage is measured and decreasing
• Index accesses are narrowed rather than guarded with ||

[Nathydre]

good day maintain,i would like to handle this issue ....thank you

[Peculiarr7]

Hi! I came across this issue and would love to work on it. I have experience with similar tasks and I'm confident I can investigate, implement a clean solution, and thoroughly test it before submitting a PR. If the issue is still open, I would appreciate it if you could assign it to me. I’ll prioritize this immediately and ensure a reliable solution is delivered as soon as possible. Thank you!