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/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Report something that isn't working as expected
+title: "[bug] "
+labels: bug
+---
+
+**Describe the bug**
+A clear and concise description of what's wrong.
+
+**To reproduce**
+Steps to reproduce the behavior:
+1. Go to '…'
+2. Configure '…'
+3. Run '…'
+4. See error
+
+**Expected behavior**
+What you expected to happen.
+
+**Screenshots / logs**
+If applicable, add screenshots or relevant log output. **Redact any secrets, tokens, or
+customer data.**
+
+**Environment**
+- Forge version / commit SHA:
+- Deployment: local (SQLite) / Docker (Postgres) / other
+- OS & browser (for console issues):
+- Python / Node version (for local dev):
+
+**Additional context**
+Anything else that might help — workflow/tool config (redacted), provider, etc.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 🔒 Report a security vulnerability
+    url: https://github.com/nihalashetty/Forge/security/advisories/new
+    about: Please report vulnerabilities privately via a GitHub Security Advisory, not a public issue.
+  - name: 💬 Questions & discussion
+    url: https://github.com/nihalashetty/Forge/discussions
+    about: Ask questions and share ideas with the community.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature request
+about: Suggest an idea or improvement
+title: "[feat] "
+labels: enhancement
+---
+
+**What problem are you trying to solve?**
+A clear description of the use case or pain point. "I'm always frustrated when …"
+
+**Proposed solution**
+What you'd like Forge to do.
+
+**Alternatives considered**
+Other approaches or workarounds you've thought about.
+
+**Additional context**
+Mockups, links, related nodes/tools, or examples. Check the
+[roadmap](../../docs/ROADMAP.md) first — it may already be planned.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,27 @@
+<!-- Thanks for contributing to Forge! Please fill this out to speed up review. -->
+
+## What & why
+
+<!-- What does this change do, and what problem does it solve? Link the issue: Closes #123 -->
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Performance
+- [ ] Refactor (no behavior change)
+- [ ] Docs / chore
+
+## Checklist
+
+- [ ] Backend: `ruff check forge migrations` is clean and `pytest -q` passes (from `apps/api`)
+- [ ] New/changed backend code is `mypy`-clean
+- [ ] Frontend: `pnpm --filter web build` passes (from repo root)
+- [ ] Shared schemas (`packages/schemas`) updated if node/tool config changed
+- [ ] Tests added/updated for the change (characterization test for behavior-preserving refactors)
+- [ ] `CHANGELOG.md` updated under **Unreleased** (for user-facing changes)
+- [ ] No secrets, tokens, or customer data in the diff
+
+## Notes for reviewers
+
+<!-- Anything that needs special attention, screenshots for UI changes, migration notes, etc. -->

.github/dependabot.yml

@@ -0,0 +1,30 @@
+version: 2
+updates:
+  # Backend Python dependencies (PEP 621 pyproject.toml).
+  - package-ecosystem: "pip"
+    directory: "/apps/api"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 5
+    groups:
+      python:
+        patterns: ["*"]
+
+  # Frontend / workspace JS dependencies (pnpm workspace at the repo root).
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 5
+    groups:
+      javascript:
+        patterns: ["*"]
+
+  # GitHub Actions used by the workflows.
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      actions:
+        patterns: ["*"]

.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 }}"