fix(web): show pull request refresh feedback

[t3-code]

problem

refreshing a pull request from its action menu gave no visible confirmation, making it easy to wonder whether the click worked and press it again.

fix

• show an immediate loading toast when refresh is selected
• replace it with a success toast once the host cache has been invalidated and the pull request refresh has started
• keep automatic and page-level refreshes silent

verification

• vp run --filter @t3tools/web typecheck
• vp lint apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx --report-unused-disable-directives
• vp fmt --check apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx
• git diff --check

screenshots

before

clicking refresh leaves the panel unchanged, with no confirmation.

after

clicking refresh confirms completion with a visible success toast.

implemented with gpt-5.6-sol via hermes agent.

request provenance

• requested by: @Bil0000

[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	11.3 KiB	11.3 KiB	+14 B (+0.1%)	15.1 KiB	✅
Codex	Thread snapshot wire	5.5 KiB	5.5 KiB	+1 B (+0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	5.9 KiB	5.9 KiB	+13 B (+0.2%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	49.7 KiB	49.7 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	16	16	0 (0.0%)	21	✅
Claude	Total thread wire	11.4 KiB	11.3 KiB	−20 B (−0.2%)	15.1 KiB	✅
Claude	Thread snapshot wire	5.5 KiB	5.5 KiB	+4 B (+0.1%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	5.9 KiB	5.9 KiB	−24 B (−0.4%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	50.6 KiB	50.6 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	16	16	0 (0.0%)	21	✅

Baseline: ac1264e · PR result: f0d0b80 · Source CI: failure

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: 94.6 KiB
• Claude decoded thread snapshot: 95.4 KiB

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

[macroscopeapp]

Approvability

Verdict: Approved f0d0b80

This PR adds toast notification feedback when refreshing a pull request. It's a self-contained UI enhancement using existing patterns, with no changes to core behavior or data flow.

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