fix(date-picker): eliminate infinite re-render crash on re-open with existing selection (#4609)

* docs(uploads): clarify QUOTA_EXEMPT_STORAGE_CONTEXTS logs entry in JSDoc

* fix(date-picker): eliminate infinite re-render on re-open with existing selection

The useEffect that syncs picker state on open had initialStart and
initialEnd — Date objects computed on every render — in its dependency
array. Because Object.is returns false for any two distinct Date
instances, the effect fired on every render when open=true, calling
setRangeStart/setRangeEnd and triggering another render, producing an
infinite loop that crashed the page.

Fix: compute start and end as local variables inside the effect and
use the stable string props (props.startDate, props.endDate) as deps
instead.

Also removes the redundant typeof fileSize === 'number' guard in the
multipart quota check — fileSize is z.number() (required) in the
contract so it can never be undefined at that point.

* refactor(date-picker): comprehensive cleanup and reliable crash fix

The previous fix still had derived Date objects in useEffect deps.
Object.is(new Date(), new Date()) === false, so any Date in deps causes
the effect to run every render, reproducing the infinite loop on
re-open with existing time selection.

Key changes:
- useEffect deps now use only stable primitives (startDate, endDate strings)
  and compute Date values inside the effect — eliminating the loop
- Replace `rest as any` with a FlatDatePickerProps merged type for safe,
  typed destructuring across the discriminated union
- Remove initialStart/initialEnd render-scope variables; compute inline or
  inside effects to keep derivation local to each use site
- Callbacks use destructured props (onChange, onRangeChange, etc.) instead
  of props.x references
- Remove verbose TSDoc on internal callbacks — names are self-documenting
- Preserve all existing JSX structure and CalendarMonth logic unchanged

Author: waleedlatif1

apps/sim/app/api/files/multipart/route.ts

@@ -134,12 +134,9 @@ export const POST = withRouteHandler(async (request: NextRequest) => {
 
         const config = getStorageConfig(storageContext)
 
-        if (
-          !QUOTA_EXEMPT_STORAGE_CONTEXTS.has(context as StorageContext) &&
-          typeof fileSize === 'number'
-        ) {
+        if (!QUOTA_EXEMPT_STORAGE_CONTEXTS.has(context as StorageContext)) {
           const { checkStorageQuota } = await import('@/lib/billing/storage')
-          const quotaCheck = await checkStorageQuota(userId, fileSize)
+          const quotaCheck = await checkStorageQuota(userId, fileSize ?? 0)
           if (!quotaCheck.allowed) {
             return NextResponse.json(
               { error: quotaCheck.error || 'Storage limit exceeded' },