feat(web): Add provider button sits with the provider list - #17152

## What's Changed
* feat(providers): run Muse Code as a native provider by @t3dotgg in pingdotgg/t3code#17082
* feat(web): compact-before-send is a chip that shows the token count by @t3dotgg in pingdotgg/t3code#17127
* fix(clients): copy button is back in its old spot, before fork by @t3dotgg in pingdotgg/t3code#17137
* fix(usage): repeat usage scans no longer decode unchanged Antigravity databases by @t3dotgg in pingdotgg/t3code#17139
* fix(server): shell snapshots no longer block other database reads while decoding by @t3dotgg in pingdotgg/t3code#17141
* perf(server): ACP tool updates no longer persist a snapshot per streamed chunk by @darjss in pingdotgg/t3code#16682
* feat(web): filter the Usage page to just the providers you want by @t3dotgg in pingdotgg/t3code#16970
* fix(usage): Cursor account history loads about 4x faster by @t3dotgg in pingdotgg/t3code#17140
* fix(server): threads settle as soon as branch status sees their PR merge by @t3dotgg in pingdotgg/t3code#17148
* perf(usage): the Usage page shows numbers in under a second and dims only what is still loading by @t3dotgg in pingdotgg/t3code#17147
* fix(server): an agent can settle its own thread when its turn ends by @t3dotgg in pingdotgg/t3code#17145
* feat(web): Add provider button sits with the provider list by @t3dotgg in pingdotgg/t3code#17152

## New Contributors
* @darjss made their first contribution in pingdotgg/t3code#16682

**Full Changelog**: pingdotgg/t3code@v0.0.46-nightly.20261008.2813...v0.0.46-nightly.20261008.2819

Upstream release: https://github.com/pingdotgg/t3code/releases/tag/v0.0.46-nightly.20261008.2819

## What's Changed
* feat(providers): run Muse Code as a native provider by @t3dotgg in pingdotgg/t3code#17082
* feat(web): compact-before-send is a chip that shows the token count by @t3dotgg in pingdotgg/t3code#17127
* fix(clients): copy button is back in its old spot, before fork by @t3dotgg in pingdotgg/t3code#17137
* fix(usage): repeat usage scans no longer decode unchanged Antigravity databases by @t3dotgg in pingdotgg/t3code#17139
* fix(server): shell snapshots no longer block other database reads while decoding by @t3dotgg in pingdotgg/t3code#17141
* perf(server): ACP tool updates no longer persist a snapshot per streamed chunk by @darjss in pingdotgg/t3code#16682
* feat(web): filter the Usage page to just the providers you want by @t3dotgg in pingdotgg/t3code#16970
* fix(usage): Cursor account history loads about 4x faster by @t3dotgg in pingdotgg/t3code#17140
* fix(server): threads settle as soon as branch status sees their PR merge by @t3dotgg in pingdotgg/t3code#17148
* perf(usage): the Usage page shows numbers in under a second and dims only what is still loading by @t3dotgg in pingdotgg/t3code#17147
* fix(server): an agent can settle its own thread when its turn ends by @t3dotgg in pingdotgg/t3code#17145
* feat(web): Add provider button sits with the provider list by @t3dotgg in pingdotgg/t3code#17152

## New Contributors
* @darjss made their first contribution in pingdotgg/t3code#16682

**Full Changelog**: pingdotgg/t3code@v0.0.46-nightly.20261008.2813...v0.0.46-nightly.20261008.2819

Upstream release: https://github.com/pingdotgg/t3code/releases/tag/v0.0.46-nightly.20261008.2819

Merges `pingdotgg/t3code` `c9fa1367ca` (99 commits from `0f09627a11`)
into the fork. No open merge PR to stack on; branches from `main`.

## Merge

- Landed 940 files against 939 in the upstream range (the extra is
`docs/fork/inventory.json`); fork delta 775 files.
- 8 conflicts, resolved by their preflight verdicts — details in the
`docs/fork/upstream-merge-log.md` entry. The ones worth a reviewer's
eye:
- `ProviderSettingsPanel.tsx`: upstream moved Add provider into
`titleAction` (pingdotgg#17152); the `FEATURES.providerConfiguration` gate moved
with it.
- `PreviewView.tsx` (`decide`): fork's framed `navigate` kept beside
upstream's move-tab/`close`.
- `ChatMarkdown.tsx`: upstream's markdown pipeline moved to
`@t3tools/shared/markdownPipeline`; only the Moatless Artifact imports
re-applied.
- `pnpm-lock.yaml` re-derived by install (fork `moatless-api` edge
present).
- Contract: `UnsupportedMethodError` added to
`orchestration.searchThread`, `orchestration.searchThreadStream`,
`preview.reportProfiles`; dropped from `projects.mutate` (served by the
backend since moatless pingdotgg#1075).
- `AppRoot.test.tsx` (fork-only) updated for upstream's new
`<BrowserProfileReporter />` child.

## Verification

`verify.mjs`: duplicate-adds, tripwires, resolution-check,
unsupported-methods, lockfile, fmt, lint, typecheck and build all pass.
Test: `@t3tools/web` had one failure (`AppRoot.test.tsx`), fixed and
re-run green. Still red and confirmed failing alone — the same four as
the 2026-10-08 merge, recorded there as machine rather than code:
`ServerBrowserPage`, `AcpAdapterV2`, `OrchestratorReplayFixtures`
(server) and `OpenCodeServerLedger` (now in
`@t3tools/provider-opencode`). The full pass was not re-run after the
`AppRoot` test fix; the web package re-run and that file alone were.

## Usable as-is

- Thread-find match tints, timeline marker room, sidebar drag fix,
collapsed-composer spacing, centered scroller fix, PR panel layout fixes
(pingdotgg#17263, pingdotgg#17372, pingdotgg#17373, pingdotgg#17016, pingdotgg#17077, pingdotgg#15560–pingdotgg#15588, pingdotgg#16162).
- Compact-before-send chip with token count (pingdotgg#17127); quote chips show
your note (pingdotgg#15703); projectless threads show their machine (pingdotgg#17022);
short messages with quotes/links no longer collapse (pingdotgg#16624); copy
button position (pingdotgg#17137).
- File preview fixes: downloads, in-page links, repo paths, favicons no
longer leak internal hosts (pingdotgg#16950); previews before a thread's first
message (pingdotgg#17352).
- Terminal scrollback navigation (pingdotgg#17091).
- Usage page filters and performance (pingdotgg#16970, pingdotgg#17147) — only where the
fork exposes Usage.
- Mobile, desktop and relay fixes (many) — not fork targets, taken
as-is.
- Provider package extraction
(`packages/provider-{core,acp,cursor,grok,muse,opencode,pi,testing}`) —
internal refactor, no fork impact beyond the new web deps.

## Unsupported in Moatless / needs implementation

- **Find in thread** (pingdotgg#10439) — `orchestration.searchThread`,
`orchestration.searchThreadStream`; client gated on the `threadFind` /
`threadFindProgressive` capabilities, which Moatless does not report, so
it toasts "unavailable on this server". Needs a backend search over
projected messages plus the capability. Added to `docs/fork/gaps.md`.
- **Browser profiles for server-hosted tabs** (pingdotgg#16956,
`BrowserProfileReporter`) — `preview.reportProfiles`; sent only to
`serverBrowser` environments, so never sent here. Extends the
server-hosted-browser gap.
- **Connection permissions / session lifetime** (pingdotgg#17370) —
`SessionPermissions.tsx` renders inside the Connections page, which
`FEATURES.connections` hides.
- **CLI-update-unlocks-model hint** (pingdotgg#17307) — needs provider snapshot
fields Moatless does not publish.
- **Muse Code native provider** (pingdotgg#17082), **JetBrains over SSH**
(pingdotgg#17271) — upstream server/desktop runtime.

## Backend behavior to consider reproducing in Moatless

- Settle as soon as branch status sees the PR merge (pingdotgg#17148,
`ThreadSettlementReactor.ts`); an agent can settle its own thread at
turn end (pingdotgg#17145).
- A message sent during a rollback no longer undoes it (pingdotgg#17079); held
queued wakes no longer keep delegated tasks running (pingdotgg#17028).
- Long-thread message sync paged faster (pingdotgg#17387); shell snapshot decode
no longer blocks other DB reads (pingdotgg#17141); ACP tool updates no longer
persist a snapshot per chunk (pingdotgg#16682).
- Agent browser tools stop bloating history and respect tab ownership
(pingdotgg#16956); authenticated GitHub Enterprise hosts recognised (pingdotgg#11059);
session lifetime enforced (pingdotgg#17370).

All recorded in `docs/fork/gaps.md`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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Moatless task:
https://moatless.soaplabstest.com/tasks/571512c6-b6a0-4727-943d-231929222fc2