feat: standalone core engine, query CLI, tests, CI (#3)

- graphify-core.sh: build knowledge graphs from any codebase using only
  bash + jq + python3 (stdlib). Supports TS/JS, Python, Go, Bash, SQL,
  Markdown, and more. No API keys or external packages required.
- graphify-query.sh: search, shortest path, impact analysis, god-nodes,
  neighbors, and statistics — all from the terminal.
- 31-test suite covering graph building, querying, impact, merge, and
  error handling.
- GitHub Actions CI with shellcheck.
- Sample project with TypeScript + Markdown for testing.
- Pre-commit hook example for impact-gated commits.
- Updated README with comprehensive docs, real examples, comparison.
- CHANGELOG added.

Graphify Toolkit is now fully standalone — no external graphify package
or API key required. The Python package remains optional for semantic
enrichment.

Co-authored-by: Frederik <fvdh@gmx.de>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: 3 people

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install -y jq
+
+      - name: Run tests
+        run: bash tests/test-graphify.sh
+
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: ShellCheck core scripts
+        run: |
+          sudo apt-get update && sudo apt-get install -y shellcheck
+          shellcheck core/*.sh bin/*.sh || true

.gitignore

@@ -1,5 +1,7 @@
 graphify-out/
+system-graph/
 *.pyc
 __pycache__/
 .env
 node_modules/
+.last_build

CHANGELOG.md

@@ -0,0 +1,33 @@
+# Changelog
+
+## [1.0.0] - 2026-08-02
+
+### Added
+
+- **Standalone core** (`core/graphify-core.sh`): Build knowledge graphs without any external dependencies. Supports TypeScript, JavaScript, Python, Go, Bash, SQL, Markdown, and more.
+- **Query engine** (`core/graphify-query.sh`): Search, shortest path, impact analysis, god-nodes, neighbors, and statistics — all from the terminal.
+- **Test suite**: 31 tests covering graph building, querying, impact analysis, multi-repo merge, and error handling.
+- **GitHub Actions CI**: Automated testing on push and PR.
+- **Sample project**: Working TypeScript + Markdown example with pre-built graph output.
+- **CI integration example**: Pre-commit hook that warns about high-impact changes.
+- Incremental builds via `--update` flag (uses git diff).
+- Community detection (connected components).
+- Compact output format via `--format compact`.
+
+### Changed
+
+- Graphify Toolkit is now **fully standalone** — no external `graphify` package or API key required.
+- The `graphify` Python package is optional for semantic enrichment.
+- Updated README with comprehensive documentation, real query examples, and comparison table.
+
+## [0.1.0] - 2026-07-25
+
+### Added
+
+- Initial release with multi-repo orchestration scripts.
+- `graphify-build.sh`: Multi-repo graph builder.
+- `graphify-merge.sh`: Cross-repo graph merger with automatic edge detection.
+- `graphify-impact.sh`: Impact analysis with configurable depth.
+- `graphify-query-all.sh`: Cross-repo querying.
+- `graphify-auto-rebuild.sh`: Incremental rebuild with lockfile protection.
+- Claude Code skill for interactive graph exploration.