feat(ci): Add type validation script and update track plan

scripts/validate_types.ps1

@@ -0,0 +1,20 @@
+# scripts/validate_types.ps1
+$ErrorActionPreference = "Stop"
+
+Write-Host "Running Ruff Check..." -ForegroundColor Cyan
+uv run ruff check .
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "Ruff check failed!" -ForegroundColor Red
+    exit 1
+}
+
+Write-Host "Running Mypy Check..." -ForegroundColor Cyan
+# We allow some existing errors for now but aim for zero in core files
+uv run mypy api_hook_client.py models.py events.py conductor_tech_lead.py dag_engine.py orchestrator_pm.py
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "Mypy check failed on core files!" -ForegroundColor Red
+    exit 1
+}
+
+Write-Host "All type checks passed!" -ForegroundColor Green
+exit 0