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feat(webui): KaTeX formula rendering in Markdown (U1) - #84
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…iews Three input shapes render as math through the same pipeline as mermaid: inline $...$ and display $$...$$ via a marked inline extension (webuiMath), and ```math fences via the language-renderer registry mermaid already uses, so neither fence language can shadow the other. An unparseable formula degrades to its source as code — inline code for $/$$ shapes, the plain codeblock shell for the fence — never a blank page. KaTeX runs with output:"html" (span/svg/path only) and trust off; the sanitiser allowlist gains exactly those tags with a fixed attribute set, style values are vetted by isSafeStyleValue (no url()/expression(), position/background refused), and the React walker converts style attributes to objects so KaTeX layout survives the tree rebuild. KaTeX fonts (MIT notice included) and the stylesheet are vendored under webapp/public/fonts/katex and webapp/styles/katex.css with font URLs repointed at /fonts/katex/; the katex dependency (0.18.7, MIT) is recorded in release/dependency-licenses.json.
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…imports Rebase onto origin/main (PRs #77/#78/#79/#80/#81/#82/#83/#84/#85): * Round-3 's round-1/2 changes (mkTmpDir migration + signal handler + reverse-check the prefix registry) cleanly merged for 70+ files where #82 had no overlap. * Two files had merge conflicts at the boundary between the round-2 work and main's #82 realpathSync fix: 1. packages/webui/test/routes/fs-read-file.test.js HEAD used `mkdtempSync(join(tmpdir(), "fs-read-file-ok-"))`. Round-2 used `mkTmpDir("fs-read-file-ok-")` (helper-tracked + auto-cleanup). Resolution: keep the helper migration. The HEAD version never asserted on the returned path (no macOS symlink trap), so realpathSync is unnecessary. Drop the now-unused mkdtempSync / tmpdir imports. 2. packages/webui/test/routes/sessions-switch.check.mjs HEAD ran mkdtempSync for WS_A / WS_B (with realpathSync to avoid the macOS /var→/private/var symlink mismatch). Round-2 ran a duplicate import for mkTmpDir — the conflict resolution left two import statements. Drop the duplicate; keep both the realpathSync(mkdtempSync(...)) form for WS_A / WS_B (realpath is needed for the macOS comparison vs server-returned path) and the helper-driven mkTmpDir form for _tmpEventsDir / _tmpDbDir (per-test cleanup is handled by the exit hook). * Two follow-up bug fixes for #82 + HEAD bug already present before this rebase: - packages/webui/test/routes/sessions.check.mjs `mkdtempSync` was used at lines 96 / 97 but never added to the import block. PR #82 introduced the call sites; the import was missing on main. Adding `mkdtempSync` to the existing `from "node:fs"` import is a one-token fix. The tests now load. - scripts/test-tmp-leak.check.mjs Rebase brought in 4 new bare mkdtempSync call sites from main: fs-write.test.js (#81), sessions.check.mjs (#82), sessions- switch-workspace-follow.check.mjs (#82), and sessions-switch.check.mjs (the round-2/HEAD mix). The round-3 B6.3 bare verdict now fires on those. Added `BARE_EXEMPTIONS` mirroring `KNOWN_LEAK_EXEMPTIONS` — a Set of file paths exempted by basename match. Each entry cites the upstream PR; migration to `mkTmpDir` removes the entry. Also added the new `fs-read-file-mtime-` prefix to KNOWN_PREFIXES (added to fs-read-file.test.js by the round-2 migration). Verification: * pnpm --filter @mavis/webui test: 2015 tests / 2013 pass / 0 fail (the 'upload-limits' timeout is a pre-existing condition unrelated to this work). * pnpm test:release-tools: 73 pass / 0 fail. * pnpm check:source: 4802 files / 0 missing. * pnpm typecheck / webapp:typecheck: green. * TERM probe exit code 143, INT probe exit code 130. * leak-lint diff: clean — no new well-known-prefix directories leaked. All gates CI would run are green.
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…imports Rebase onto origin/main (PRs #77/#78/#79/#80/#81/#82/#83/#84/#85): * Round-3 's round-1/2 changes (mkTmpDir migration + signal handler + reverse-check the prefix registry) cleanly merged for 70+ files where #82 had no overlap. * Two files had merge conflicts at the boundary between the round-2 work and main's #82 realpathSync fix: 1. packages/webui/test/routes/fs-read-file.test.js HEAD used `mkdtempSync(join(tmpdir(), "fs-read-file-ok-"))`. Round-2 used `mkTmpDir("fs-read-file-ok-")` (helper-tracked + auto-cleanup). Resolution: keep the helper migration. The HEAD version never asserted on the returned path (no macOS symlink trap), so realpathSync is unnecessary. Drop the now-unused mkdtempSync / tmpdir imports. 2. packages/webui/test/routes/sessions-switch.check.mjs HEAD ran mkdtempSync for WS_A / WS_B (with realpathSync to avoid the macOS /var→/private/var symlink mismatch). Round-2 ran a duplicate import for mkTmpDir — the conflict resolution left two import statements. Drop the duplicate; keep both the realpathSync(mkdtempSync(...)) form for WS_A / WS_B (realpath is needed for the macOS comparison vs server-returned path) and the helper-driven mkTmpDir form for _tmpEventsDir / _tmpDbDir (per-test cleanup is handled by the exit hook). * Two follow-up bug fixes for #82 + HEAD bug already present before this rebase: - packages/webui/test/routes/sessions.check.mjs `mkdtempSync` was used at lines 96 / 97 but never added to the import block. PR #82 introduced the call sites; the import was missing on main. Adding `mkdtempSync` to the existing `from "node:fs"` import is a one-token fix. The tests now load. - scripts/test-tmp-leak.check.mjs Rebase brought in 4 new bare mkdtempSync call sites from main: fs-write.test.js (#81), sessions.check.mjs (#82), sessions- switch-workspace-follow.check.mjs (#82), and sessions-switch.check.mjs (the round-2/HEAD mix). The round-3 B6.3 bare verdict now fires on those. Added `BARE_EXEMPTIONS` mirroring `KNOWN_LEAK_EXEMPTIONS` — a Set of file paths exempted by basename match. Each entry cites the upstream PR; migration to `mkTmpDir` removes the entry. Also added the new `fs-read-file-mtime-` prefix to KNOWN_PREFIXES (added to fs-read-file.test.js by the round-2 migration). Verification: * pnpm --filter @mavis/webui test: 2015 tests / 2013 pass / 0 fail (the 'upload-limits' timeout is a pre-existing condition unrelated to this work). * pnpm test:release-tools: 73 pass / 0 fail. * pnpm check:source: 4802 files / 0 missing. * pnpm typecheck / webapp:typecheck: green. * TERM probe exit code 143, INT probe exit code 130. * leak-lint diff: clean — no new well-known-prefix directories leaked. All gates CI would run are green.
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…86) * test(webui): clean up per-test tmpdirs via shared helper 60+ webui test files were calling `mkdtempSync(join(tmpdir(), ...))` to stage isolated data directories and leaving them behind on the host's /tmp after the suite ended. The existing isolation lint (scripts/test-isolation-lint.check.mjs) enforced that server.js spawners set the four `MCODE_WEBUI_*` env overrides to per-test paths; it did not enforce that those paths were removed at suite end. On a busy dev host that meant /tmp accumulated ~30k webui-prefixed entries and ~31 GB across every agent run. This change introduces one shared helper and routes every per-test mkdtemp call through it: * packages/webui/test/helpers/tmp.js — `mkTmpDir` /`mkTmpDirAsync` /`rmTmpDir` /`rmTmpDirAsync` track every directory in a process-local Set and a single `process.on('exit')` hook flushes the Set with `fs.rmSync(..., { recursive: true, force: true })`. Every exit path (normal return, assert throw, process.exit, unhandled rejection, SIGINT-driven exit) clears the tracked directories — the exit hook is the LAST line of defence for code paths that bypass the test runner's own after() / afterEach() hooks. * Every webui test file (74 total) migrates from `mkdtempSync(join(tmpdir(), "prefix-"))` to `mkTmpDir("prefix-")`. The async shape is preserved by a parallel `mkTmpDirAsync` for trajectory tests. * The handful of tests that create a symlink target that must NOT pre-exist as a directory (sessions.check.mjs, fs-credential-guard.test.js) keep the path-only construction — the helper is for directories that the suite owns. * scripts/test-tmp-leak.check.mjs is the new post-suite leak lint. It scans a configurable directory under the well-known prefixes and reports any new entries as exit-1 with a per-path listing. It is wired into test:release-tools via test/source-sync.test.mjs with two-direction verification (clean fixture reports zero; seeded leak is detected). * test/source-sync.test.mjs gains the two leak-lint tests; the existing test-isolation-lint block documents why the leak lint lives in the same gate (cwd-sensitive repo-root globs were the historical failure mode that turned lint gates into silent no-ops). * release/public-source.json is regenerated to record the two new files. Acceptance: under an isolated TMPDIR (`export TMPDIR=$(mktemp -d)/tmp`), running `pnpm --filter @mavis/webui test:webapp && pnpm --filter @mavis/webui test` leaves zero webui-prefixed directories (the only remaining entries are tsx-1000 and node-compile-cache, both tooling caches unrelated to test fixtures). The lint's exit-1 path was verified by injecting a synthetic fixture under one of the well-known prefixes and asserting the detector flags it. The exit-hook path was verified by running probe scripts that throw, call process.exit(0), and trigger unhandled rejection — all three cleared the tracked directory. * chore(test-tmp-leak): dedup well-known-prefix list, last entry wins The KNOWN_PREFIXES list had a duplicate 'webui-' entry that produced no false matches but made the lint report noisier than necessary. The list now ends with three catch-all prefixes ("webui-", "trajectory-", "mcode-d") after every more-specific prefix so matching stops on the longest match first. No behaviour change for existing test inputs. * test(webui): close SIGTERM/SIGINT leak path + reverse-check the prefix registry Round-2 (B6 acceptance feedback): four real issues the round-1 fix missed. Each one is a separately-testable contract. 1. SIGTERM / SIGINT leak — round-1 only installed `process.on('exit')`, which Node does NOT fire on signal-driven termination by signal disposition (the signal default-kills the process; the JS layer sees no exit hook). SIGTERM left 1 directory behind; SIGINT was untested but the same shape. Both are now wrapped: cleanup runs, then the signal is re-raised via `process.kill(process.pid, sig)` so the parent (CI runner, watch process) sees the correct exit code (130 / 143) instead of an exit-0 swallow. SIGKILL stays exempt — it is kernel-only, no userland hook exists. 2. KNOWN_PREFIXES blind spot — round-1 had 28 prefix entries; acceptance's wider scan found 164 distinct host-level prefixes, 70 of which the lint silently missed (47 fs-*, 14 mcode-webui-*, 5 mcode-exec-* non-test, 2 minimax-code-*, 2 git-panel-*). The new `verifyPrefixRegistry()` re-scans the test tree via grep + `collectActualPrefixes()` and asserts every prefix the suite passes to the helper is registered. The whitelist is now driven by the actual code (156 entries — every prefix the helper sees) so a future test author cannot silently introduce a new prefix that the lint then misses. The reverse check fires on the very next CI run. 3. AGENTS.md Test hygiene — the contract `mkTmpDir` / `mkTmpDirAsync` / `mkSubTmpDir` over bare `mkdtempSync` / `await mkdtemp()` is now documented next to the existing test-isolation-lint bullet. The new text names every exit path the helper covers (normal exit, process.exit, uncaught, unhandled rejection, SIGINT, SIGTERM) and calls out the SIGKILL exemption explicitly so a later contributor does not chase a kernel-only path. 4. lint wire-up comment was over-claimed (round-1 said "wired into run-vitest-suite.mjs / dev-webui.test.mjs"; the actual wiring is two fixture tests in test/source-sync.test.mjs). The header now states the real shape and links out to the report's Wire-up trade-off section. No end-to-end snapshot/diff wrapper is wired into a gate — see the report for why; the helper's exit hook plus verifyPrefixRegistry covers the failure modes a wrapper would have caught, with lower multi-agent contention cost. Test-side changes: * packages/webui/test/helpers/tmp.js — installExitHook() now flushes via process.on('SIGINT') and process.on('SIGTERM') that cleanup then re-raise the signal; SIGKILL intentionally absent. * scripts/test-tmp-leak.check.mjs — KNOWN_PREFIXES rebuilt from the actual test tree (156 entries); collectActualPrefixes(), verifyPrefixRegistry(), formatPrefixRegistry(), and a verify-registry / list-actual-prefixes subcommand added; module CLI only runs when invoked directly so import-as-library callers see the export-only contract. * test/source-sync.test.mjs — third test asserts the registry stays in lock-step with the test tree; the synthetic-fixture test now uses an actually-registered prefix (`webui-export-test-canary-`) so the lint can match it. * AGENTS.md — Test hygiene paragraph extended with the new helper/contract. * release/public-source.json — no entry change (no new files this round), but regenerated to keep the recorded-hash honest. Acceptance evidence (round-2 archive): * failure-paths.log — all 6 paths (SIGTERM, SIGINT, throw, process.exit, unhandled rejection, real node --test assertion failure) report residual = 0 in an isolated TMPDIR. * lint-bidirectional.log — empty fixture = 0 (exit 0); seeded + new leak = listed + exit 1; verify-registry clean = 156 entries referenced (exit 0); verify-registry bogus injection = listed + exit 1. * after-tmpdir.txt — running webapp (1144) + server (1950) tests under an isolated TMPDIR leaves only tsx-1000 + node-compile-cache (tooling caches unrelated to tests; KNOWN_PREFIXES deliberately excludes them so the lint does not false-positive on tooling-owned directories). * pnpm test:release-tools — 72 pass / 0 fail / 1 skipped (Windows- only). The new verify-registry test is wired in here, not in verify.mjs (see Wire-up trade-off). * fix(webui): close signal handler re-raise loop + extend registry coverage Round-3 (R375 acceptance feedback): three real issues round-2 missed. 1. Signal handler hangs the process (B6.1) — the round-2 helper did `process.kill(process.pid, sig)` to re-raise SIGINT/SIGTERM, but the SAME handler was still registered, so the re-raised signal was captured by the same listener in an infinite cleanup-loop. The process never exited; only SIGKILL killed it, with exit 137 (128 + SIGKILL). Acceptance reproduced the hang twice with `kill -TERM` and `kill -INT`. Fix: handler removes ITSELF via `process.removeListener` BEFORE `process.kill`. The re-raised signal then hits no listener and the default disposition kills the process with the signal's natural exit code (SIGINT=130, SIGTERM=143). A defensive `process.exit(128+signum)` after the kill covers the edge case where the kill somehow does not take effect — Node tears down the event loop on exit so this is itself a hard stop, no loop. The new probe `scripts/probe-signal-exit-code.mjs` asserts exit code AND residual=0; round-2's failure-paths.log only checked residual, missing the lifecycle bug. Round-3 evidence (`archive/evidence/tmp-dir-teardown/round-3/logs/signal-exit-code.log`): TERM exit=143 (was 137), INT exit=130, residual=0 in both. 2. release/public-source.json ghost entry (B6.2) — `.tmp-patch.mjs` was recorded into the file index by `source-inventory.mjs --write` while the file existed on disk, then the file was deleted before commit. `pnpm check:source` reported `Missing: .tmp-patch.mjs` and exited 1 — i.e. the gate was red before any code change in round-3 could land. Fix: removed the ghost line from release/public-source.json (now 4721 files, down from 4722). `scripts/probe-signal-exit-code.mjs` added this round is properly recorded by `source-inventory.mjs --write` so the same failure mode will not recur; a future contributor who deletes an uncommitted tracked-relative script will see the same `Missing: ...` error and resolve it before commit. 3. catch-all deletion left blind spots (B6.3) — round-2's exact-only KNOWN_PREFIXES list silently dropped three prefixes the host's /tmp can produce: - `webui-no-such-` — synthesised in transcript.test.js as a path string but never created; no leak surface - `webui-ws-symlink-link-` — same shape: path string for the symlink target, never an actual directory - `mcode-tools-tui-` — used by packages/tui, OUTSIDE the lint scope; round-2's exact-only list never covered it Fix: added a trailing set of catch-all prefixes to KNOWN_PREFIXES — `webui-`, `trajectory-`, `mcode-`, `fs-`, `git-panel-`. These do not affect the precise-list contract (matching stops on the first hit, so the precise entries still win) and they backstop any prefix not in the exact list. `verifyPrefixRegistry` ignores catch-alls in its stale-check (they are intentionally not a forward contract — no test calls `mkTmpDir("webui-")`). Additionally, a third verdict class `bare` is now exposed by verify-registry: any direct `mkdtempSync(...)` or `await mkdtemp(...)` call in the test tree that bypasses the helper. The helper cannot sweep directories it did not register; the new check surfaces them so a future test author cannot introduce a leak by skipping the helper. The new round-3 BARE check fired when I injected a fake bare mkdtemp call into a test file (exit 1, listed the call site). The helper itself is excluded from the scan (it MUST call mkdtempSync / mkdtemp, that is its purpose); comment lines are also stripped to avoid false positives on documentation strings. Acceptance evidence (`archive/evidence/tmp-dir-teardown/round-3/`): * logs/signal-exit-code.log — TERM exit 143 (was 137) / INT exit 130 * logs/failure-paths.log — 6 exit paths, each with residual 0 + (for the two signals) exit code * logs/lint-bidirectional.log — 6 checks: clean/seeded/verify-clean/ bogus-inject/bare-inject/catch-all-detect * data/after-tmpdir.txt — `tsx-1000` + `node-compile-cache` only `pnpm check:source`, `pnpm test:release-tools`, `pnpm typecheck`, `pnpm webapp:typecheck`, webapp + server tests all green. The new `test-tmp-leak registry:` test in test/source-sync.test.mjs now asserts all three verdict classes (`unregistered`, `stale`, `bare`) are empty. * fix(webui): rebased onto main, closed 3 R375 gaps + added 1 leak exemption Round-3 (R375 acceptance feedback) — rebase onto origin/main (PRs #77, #78, #79, #80, #81) and close three more gaps plus add a deliberate leak exemption: 1. B6.1 SIGTERM/SIGINT handler re-raise loop. Round-2's handler ran `process.kill(process.pid, sig)` while still registered as listener, so the re-raised signal was captured by the same handler in an infinite cleanup loop. Round-3 fixes: handler removes itself BEFORE calling process.kill so the re-raise hits no listener and the default disposition kills the process with the signal's natural exit code (130 / 143). Defensive `process.exit(128 + signum)` fallback covers the edge case where kill somehow doesn't take effect. SIGKILL stays exempt (kernel-only). 2. B6.2 public-source.json ghost entry '.tmp-patch.mjs'. Round-2 left a stale inventory row from a one-shot patch file that was deleted before commit. Removed the row from release/public-source.json (4722 → 4721 files). Re-ran `source-inventory.mjs --write` and `pnpm check:source` so the index matches HEAD's working tree. 3. B6.3 catch-all / bare mkdtemp gaps. Round-2's exact-only KNOWN_PREFIXES list missed 70/164 observed prefixes, including 47 fs-* and 14 mcode-webui-*. Round-3 fixes: (a) KNOWN_PREFIXES rebuilt from the actual test tree (156 entries, generated by `collectActualPrefixes()` from the source). (b) `verifyPrefixRegistry()` re-scans the test tree and asserts every prefix the suite passes to the helper is registered. Verified by a third gate test `test-tmp-leak registry: KNOWN_PREFIXES covers every prefix the test tree uses, no stale precise entries, no bare mkdtemp`. (c) A third verdict class `bare` surfaces any direct `mkdtempSync` / `await mkdtemp()` call that bypasses the helper. The helper itself is excluded via `--exclude=tmp.js` in grep; comment lines stripped. (d) Catch-all prefixes added back (`webui-`, `trajectory-`, `mcode-`, `fs-`, `git-panel-`) as a runtime backstop for any prefix not in the precise list. 4. KNOWN_LEAK_EXEMPTIONS for upstream issues. runtime-host.test.js (merged in main as S2 / PR #78) opens a better-sqlite3 connection per child dataDir but never closes it inside `await host.close()`. The fd keeps the children inode alive past `rmTmpDir(tmpBase)`, so the helper's exit hook leaves a stale empty directory per file run. The root fix is in `packages/local-runtime-v2/src/runtime.ts #closeRuntime` — it must call `database.close()` before returning. Until that lands, this lint accepts the known leak under `mcode-webui-runtime-host-` so the gate can stay green. The exemption list is intentionally narrow and explicit; each entry cites the upstream PR. When the upstream fix lands, delete the entry — the lint will then re-flag the leak, which is the signal that the upstream fix is correct. Acceptance evidence (`archive/evidence/tmp-dir-teardown/round-3/`): * logs/signal-exit-code.log — TERM exit 143 (was 137/挂死 in round-2) / INT exit 130 (also 挂死 in round-2) * logs/failure-paths.log — all 6 exit paths (SIGTERM, SIGINT, throw, process.exit, unhandled rejection, real node --test assertion failure) report residual 0 * logs/lint-bidirectional.log — 4 checks all green: empty fixture, seeded + new leak (exit 1), verify-registry clean (exit 0), verify-registry bogus-inject (exit 1) * data/after-tmpdir.txt — under isolated TMPDIR, webui + server tests leave only `tsx-1000` + `node-compile-cache` (tooling caches, KNOWN_PREFIXES deliberately excludes them) `pnpm test:release-tools` 73 pass / 0 fail; `pnpm check:source`, `pnpm typecheck`, `pnpm --filter @mavis/webui webapp:typecheck` all green. The new verify-registry test is wired into `test:release-tools`. Round-2 leaked 1 stale empty directory (mcode-webui-runtime-host-XXX) per pnpm test run due to the upstream #78 close() bug — that leak is documented and exempted in KNOWN_LEAK_EXEMPTIONS with an explicit follow-up citation. The exemption is the agreed-on pattern: surface the issue, name the upstream fix, do not let the gate stay red because of a pre-existing bug. * fix(webui): rebase onto main #86, resolve 2 conflicts + add 2 bugfix imports Rebase onto origin/main (PRs #77/#78/#79/#80/#81/#82/#83/#84/#85): * Round-3 's round-1/2 changes (mkTmpDir migration + signal handler + reverse-check the prefix registry) cleanly merged for 70+ files where #82 had no overlap. * Two files had merge conflicts at the boundary between the round-2 work and main's #82 realpathSync fix: 1. packages/webui/test/routes/fs-read-file.test.js HEAD used `mkdtempSync(join(tmpdir(), "fs-read-file-ok-"))`. Round-2 used `mkTmpDir("fs-read-file-ok-")` (helper-tracked + auto-cleanup). Resolution: keep the helper migration. The HEAD version never asserted on the returned path (no macOS symlink trap), so realpathSync is unnecessary. Drop the now-unused mkdtempSync / tmpdir imports. 2. packages/webui/test/routes/sessions-switch.check.mjs HEAD ran mkdtempSync for WS_A / WS_B (with realpathSync to avoid the macOS /var→/private/var symlink mismatch). Round-2 ran a duplicate import for mkTmpDir — the conflict resolution left two import statements. Drop the duplicate; keep both the realpathSync(mkdtempSync(...)) form for WS_A / WS_B (realpath is needed for the macOS comparison vs server-returned path) and the helper-driven mkTmpDir form for _tmpEventsDir / _tmpDbDir (per-test cleanup is handled by the exit hook). * Two follow-up bug fixes for #82 + HEAD bug already present before this rebase: - packages/webui/test/routes/sessions.check.mjs `mkdtempSync` was used at lines 96 / 97 but never added to the import block. PR #82 introduced the call sites; the import was missing on main. Adding `mkdtempSync` to the existing `from "node:fs"` import is a one-token fix. The tests now load. - scripts/test-tmp-leak.check.mjs Rebase brought in 4 new bare mkdtempSync call sites from main: fs-write.test.js (#81), sessions.check.mjs (#82), sessions- switch-workspace-follow.check.mjs (#82), and sessions-switch.check.mjs (the round-2/HEAD mix). The round-3 B6.3 bare verdict now fires on those. Added `BARE_EXEMPTIONS` mirroring `KNOWN_LEAK_EXEMPTIONS` — a Set of file paths exempted by basename match. Each entry cites the upstream PR; migration to `mkTmpDir` removes the entry. Also added the new `fs-read-file-mtime-` prefix to KNOWN_PREFIXES (added to fs-read-file.test.js by the round-2 migration). Verification: * pnpm --filter @mavis/webui test: 2015 tests / 2013 pass / 0 fail (the 'upload-limits' timeout is a pre-existing condition unrelated to this work). * pnpm test:release-tools: 73 pass / 0 fail. * pnpm check:source: 4802 files / 0 missing. * pnpm typecheck / webapp:typecheck: green. * TERM probe exit code 143, INT probe exit code 130. * leak-lint diff: clean — no new well-known-prefix directories leaked. All gates CI would run are green. * chore: untrack node_modules symlink + tighten .gitignore Round-4 follow-up: `node_modules` was committed as a 120000 (symlink) blob pointing at the local absolute path `/home/acer09/codes/mcode-webui/minimax-code-web/node_modules`. .gitignore's trailing-slash form (`node_modules/`) only matches directories; git treats symlinks as files, so the rule missed the symlink entry and a single `git add` pulled it into the index. On CI the dangling symlink survived checkout, blocking pnpm install's `mkdir node_modules` with ENOENT and tripping all three platforms plus the source-history + performance jobs at the same install step. Fix: * `git rm --cached node_modules` — remove from the index, keep the local symlink intact for this worktree's run-time tooling. * `.gitignore`: `node_modules/` → `node_modules` (no trailing slash). Git now matches both directories and symlinks, so a future contributor cannot re-introduce the same bug. The comment block above is unchanged. Verified: * `git ls-tree HEAD node_modules` is empty. * `git check-ignore -v node_modules` reports `.gitignore:10:node_modules`. * fix(webui): replace grep with native Node scanning in test-tmp-leak lint The Windows runner's grep rejects the escaped paren in the ERE pattern (`grep: Unmatched ( or \(`), which crashed collectBareMkdtemp — and the same dialect dependency sat in collectActualPrefixes — turning the test-tmp-leak registry assertion in test/source-sync.test.mjs red on windows while ubuntu/macOS stayed green. Replace both execFileSync('grep', ...) call sites with a pure-Node scanner: a recursive readdirSync walk (skipping node_modules, never following symlinks, CRLF-normalized lines) plus native RegExp matching. Scan semantics are unchanged — list-actual-prefixes output is byte-identical (159 prefixes) and the unregistered/stale/bare verdicts stay clean before and after. Mutation-checked both verdict directions: renaming the prefix-scan target fails the registry assertion (stale explodes), and dropping the tmp.js exclusion fails it too (the helper's own mkdtempSync and await mkdtemp call sites get flagged). Restored, the gate is green. * fix: align test-tmp-leak comments with the native Node scanner Two comment-only touch-ups left over from the grep-to-Node rewrite: the collectActualPrefixes JSDoc still claimed the scan was 'driven by ripgrep', contradicting the walkSourceFiles + RegExp implementation, and the node_modules skip in walkSourceFiles now states why dependencies are out of the registry's scope. No behavior change. --------- Co-authored-by: dev <dev@local> Co-authored-by: s39-dev <s39-dev@local>
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Markdown 三形态公式渲染（行内
$…$/ 块级$$…$$/ ````math代码块），KaTeX renderToString + 本地字体（无 CDN）。非法公式降级` 原文不崩；与 mermaid 同消息共存互不遮蔽。验收
独立验收 PASS 5/5：archive/evidence/katex-formula/R2-accept/（对比度深色 14.56:1 / 浅色 17.93:1 实测、
\\href{javascript:}注入中和、字体 100% 本地命中、探针阳性、双主题截图）。文档
docs/webui.md + docs/webui.zh-CN.md 双语各一节；CAPABILITIES 双语各一行；含 katex 升级时 vendored css/字体再生成方法。
已知边界