File the broken-snapshots follow-ups from PR #101 as TODOs

[kyleve]

PR #101 (the WhereUI snapshot suite) was merged with twelve [Fix later] review comments enumerating renderings the suite pinned that are actually broken. Those comments were the only record of the debt. This moves them into the TODOs.md files, under a greppable broken-snapshots marker, and files the related placeholder-test gap alongside them.

Docs only — no code or reference images change.

What's filed

Where/TODOs.md — a broken-snapshots parent under P1s

Eight children, one per finding. Each was re-verified against the reference image and the current source rather than transcribed, so every item carries file:line evidence and a suggested fix:

Finding	Evidence
VoiceOver-annotated calendar captures are blank	calendarContent.WithData_{iPhone,iPad}_accessibility.png are 66/171 KB of white against 205 KB–2.2 MB for every other screen-sized _accessibility reference — specific to CalendarContentView, and it slips past every ImageRenderingError guard in AccessibilitySnapshotViewController
Calendar day grid breaks at ax5	Two-digit dates truncate to one digit (the 10th–31st render as "1"/"2"/"3") off the fixed numberSize square; weekday headers wrap mid-word
Presence timeline accent bar doesn't scale	Fixed 4×34 stylesheet tokens, so a 4pt stub beside ~40pt text at ax5
Presence timeline row squishes instead of restacking	One HStack at every type size; "California" hyphenates over three lines
YearView overflows horizontally at ax5	Month title reads "nuary", grid clipped both edges; YearModePicker's fixed-width bottom inset is the suspect
Resolve toolbar badge sits half outside the glass capsule	Hand-rolled Capsule overlay with a fixed .offset
Resolve sheet's ax5 reference is cut off	Captures at the fixed .iPhone frame; Frame.fullContent exists for this
Elsewhere subtitle bakes in ^[3 region](inflect: true)	Cross-reference to the P1 already filed for it, so the image isn't mistaken for correct output

The parent notes these are not flake — the file's existing "Deferred snapshot-test flakiness" ledger is a separate thing — so nobody re-records them.

Root TODOs.md — the two relocations

PeriscopeViewerSnapshotTests and SwiftDataInspectorSnapshotTests snapshot views WhereUI doesn't own. Each spans WhereUI and a shared module, so per the placement rule they sit in the root file rather than in either module's. Both are blocked on the same prerequisite: neither shared module has a snapshot bundle, and adding one means a target plus a standalone scheme and a snapshot CI job.

Shared/Periscope/TODOs.md — the placeholder tests

Eighteen tests across nine PeriscopeTools test files assert only #expect(await waitUntil { host.view.window != nil }) (or the try waitFor spelling). The predicate restates what show/showHosted already guarantee, so each test proves construction didn't crash and nothing about what rendered — including the parts the seeding goes to trouble to set up (the hierarchy outline, the injected comfortable density, the documented "No Events" state). Filed as a conversion to a PeriscopeToolsSnapshotTests bundle over the same seeded stores, sharing the bundle prerequisite with the PeriscopeViewer relocation above.

Shared/LifecycleKit/Tests/ has two window != nil checks that are explicitly out of scope and called out as such — they assert the hosting helper's own lifecycle contract, which is the one place the check is the point.

Shared/SwiftDataInspector/TODOs.md — a correction

Its existing test-split item suggests "optionally adding hosted UI smoke tests", which now contradicts the convention. A nested child points at the snapshot bundle instead, so the split isn't done against smoke tests that would immediately be replaced.

Verification

./swiftformat --lint clean. No Swift changed, so no test run applies.