feat: deep-agent canvas, live observability, and multi-environment tooling

Self-hosted platform for building, testing, and shipping LangChain/LangGraph agents. Deep-agent sub-agents on the canvas, a live tracing/observability timeline, auto-provisioned built-in tools with import/export, per-environment tool variables, streamed evaluations, and per-user auth token forwarding.

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+# Least privilege: CI only reads the checked-out code; it never writes back to the repo.
+permissions:
+  contents: read
+
+jobs:
+  api:
+    name: API - lint + tests
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: apps/api
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+      - name: Install
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev,all]"
+      - name: Ruff
+        run: ruff check forge migrations
+      - name: Mypy (advisory — gradual typing, see CONTRIBUTING.md)
+        continue-on-error: true
+        run: mypy forge
+      - name: Pytest
+        run: pytest -q
+
+  web:
+    name: Web - typecheck + build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
+        with:
+          version: 9
+      - uses: actions/setup-node@v7
+        with:
+          node-version: "22"
+          cache: pnpm
+      - name: Install
+        run: pnpm install --frozen-lockfile || pnpm install
+      - name: Build
+        run: pnpm --filter web build

.github/workflows/codeql.yml

@@ -0,0 +1,34 @@
+name: CodeQL
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: "0 6 * * 1" # weekly, Monday 06:00 UTC
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      contents: read
+      actions: read
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [python, javascript-typescript]
+    steps:
+      - uses: actions/checkout@v7
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v4
+        with:
+          language: ${{ matrix.language }}
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v4
+      - name: Analyze
+        uses: github/codeql-action/analyze@v4
+        with:
+          category: "/language:${{ matrix.language }}"