ci(agent-team): add web frontend CI via org reusable workflow

Adds .github/workflows/ci-web.yaml, a thin caller over the org
Sea-Haven-Industries/.github ci-typescript-frontend.yaml reusable workflow,
scoped to agent-team/web changes. Runs build (tsc -b + vite build = typecheck)
and vitest on PRs to main. Distinct job id ci-web (status 'ci-web / ci') so it
does not collide with the Python 'ci / ci' context. format:check/lint/test:e2e
steps toggled off until Prettier/ESLint/Playwright are wired.

Verified locally: npm ci + npm run build + npm test (36/36) all green.

.github/workflows/ci-web.yaml

@@ -0,0 +1,33 @@
+name: CI Web
+
+# Thin caller over the org reusable front-end CI for the agent-team dashboard SPA
+# (agent-team/web — Vite + React + TypeScript + vitest). Distinct job id `ci-web`
+# (→ status context `ci-web / ci`) so it does NOT collide with the Python
+# `ci / ci` context emitted by ci.yaml.
+#
+# Our package.json currently exposes build + test (+ typecheck); `build` runs
+# `tsc -b && vite build`, so the type-check happens inside build. Prettier
+# (format:check), ESLint (lint), and Playwright (test:e2e) are not wired yet, so
+# those reusable steps are toggled off until those tools are added.
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - "agent-team/web/**"
+      - ".github/workflows/ci-web.yaml"
+
+permissions:
+  contents: read
+
+jobs:
+  ci-web:
+    uses: Sea-Haven-Industries/.github/.github/workflows/ci-typescript-frontend.yaml@main
+    with:
+      node-version: "24"
+      working-directory: agent-team/web
+      cache-dependency-path: agent-team/web/package-lock.json
+      required-scripts: "build,test"
+      run-format-check: false
+      run-lint: false
+      run-e2e: false