refactor(web): remove unused overlay components and exports

[juliusmarminge]

The overlay modules export unused handles, aliases, and wrapper components. Remove those declarations and keep helpers private when their own module still uses them.

The active dialog, alert-dialog, sheet, popover, and tooltip implementations stay intact.

Layer 1 of 7 in the web runtime-export cleanup stack.

Verification at the integrated stack tip: vp run --filter @t3tools/web test passes all 4,052 tests across 333 files. Web typecheck and changed-file lint/format pass. The stack passes vp run knip:check, including repository file/dependency checks and runtime-export checks for web and all seven internal packages.

Model: gpt-6 astra. Harness: Codex in T3 Code.

Note

Remove unused exports and wrappers from alert-dialog overlay components

• Cleans up the alert-dialog module by removing the AlertDialogCreateHandle factory alias and the AlertDialogTrigger wrapper that added a data attribute before delegating to the primitive trigger.
• Stops exporting AlertDialogPortal, AlertDialogBackdrop, AlertDialogOverlay, AlertDialogContent, and AlertDialogViewport from alert-dialog.tsx. AlertDialogPopup and remaining dialog components stay exported.
• Risk: any in-tree or external import of the removed symbols (AlertDialogCreateHandle, AlertDialogPortal, AlertDialogBackdrop, AlertDialogOverlay, AlertDialogTrigger, AlertDialogContent, AlertDialogViewport) will no longer resolve from this module.

^{Macroscope summarized 7503d74.}

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	13.6 KiB	13.6 KiB	+7 B (+0.1%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.0 KiB	7.0 KiB	+1 B (+0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.6 KiB	6.6 KiB	+6 B (+0.1%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	57.1 KiB	57.1 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	10	10	0 (0.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	−5 B (−0.0%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.0 KiB	7.0 KiB	0 B (0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.5 KiB	6.5 KiB	−5 B (−0.1%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.8 KiB	57.8 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	8	8	0 (0.0%)	21	✅

Baseline: be53bbd · PR result: 7503d74 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 113.8 KiB
• Claude decoded thread snapshot: 114.5 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.

[macroscopeapp]

Approvability

Verdict: Approved at 7503d74

Macroscope's review found this PR approvable — This PR removes unused internal overlay wrappers, aliases, and exports while leaving the active dialog, alert-dialog, sheet, popover, and tooltip behavior intact. Repository usage checks show no current consumers of the removed symbols, and the web package is private.

^{You can add or adjust custom eligibility rules. Learn more.}

[juliusmarminge]

Closing this layer after maintainer review. Core UI component modules are kept as complete pasted component sets, so this partial subcomponent cleanup is intentionally dropped. #10228 now records the matching Knip export exception while retaining whole-file detection.