Add correction tracking workflow and TypeScript scripts (Phase 2)

- track-correction.yml: GitHub Action triggered on label/comment events
  - Detects when humans correct AI triage classifications
  - Records corrections as JSON files on triage-corrections branch
  - Opens/reuses a single PR for review
  - Concurrency control per issue to prevent race conditions
  - Maintainer-only permission guard (write/maintain/admin)

- scripts/corrections/: TypeScript package with full test coverage
  - track-correction.ts: correction/confirmation detection logic
  - write-correction.ts: branch/file/PR management
  - update-context-comments.ts: late justification comment appender
  - 37 tests (unit + integration) covering all scenarios

- justfile: Added install-corrections, test-corrections, lint-corrections

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: MackinnonBuck

.github/workflows/track-correction.yml

@@ -0,0 +1,63 @@
+name: "Track Classification Corrections"
+
+on:
+  issues:
+    types: [labeled, unlabeled]
+  issue_comment:
+    types: [created]
+
+concurrency:
+  group: triage-corrections-${{ github.event.issue.number }}
+  cancel-in-progress: false
+
+permissions:
+  contents: write
+  pull-requests: write
+  issues: read
+
+jobs:
+  track-correction:
+    name: "Track correction or confirmation"
+    if: github.event_name == 'issues'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - run: npm ci
+        working-directory: scripts/corrections
+
+      - run: npm run build
+        working-directory: scripts/corrections
+
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            const script = require('./scripts/corrections/dist/track-correction.js')
+            await script({github, context, core})
+
+  update-context-comments:
+    name: "Append late justification comment"
+    if: github.event_name == 'issue_comment'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - run: npm ci
+        working-directory: scripts/corrections
+
+      - run: npm run build
+        working-directory: scripts/corrections
+
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            const script = require('./scripts/corrections/dist/update-context-comments.js')
+            await script({github, context, core})

evals/corrections/.gitkeep

@@ -72,7 +72,7 @@ test-dotnet:
     @cd dotnet && dotnet test test/GitHub.Copilot.SDK.Test.csproj
 
 # Install all dependencies across all languages
-install: install-go install-python install-nodejs install-dotnet
+install: install-go install-python install-nodejs install-dotnet install-corrections
     @echo "✅ All dependencies installed"
 
 # Install Go dependencies and prerequisites for tests
@@ -100,6 +100,21 @@ install-test-harness:
     @echo "=== Installing test harness dependencies ==="
     @cd test/harness && npm ci --ignore-scripts
 
+# Install triage agent correction tracking dependencies
+install-corrections:
+    @echo "=== Installing correction tracking dependencies ==="
+    @cd scripts/corrections && npm ci
+
+# Run triage agent correction tracking tests
+test-corrections:
+    @echo "=== Testing correction tracking ==="
+    @cd scripts/corrections && npm test
+
+# Typecheck triage agent correction tracking scripts
+lint-corrections:
+    @echo "=== Typechecking correction tracking ==="
+    @cd scripts/corrections && npm run typecheck
+
 # Run interactive SDK playground
 playground:
     @echo "=== Starting SDK Playground ==="

evals/results/.gitkeep

@@ -0,0 +1,2 @@
+node_modules/
+dist/