chore: derive __version__ from metadata, bump GHA action versions

- openjarvis.__version__ now comes from importlib.metadata.version("openjarvis")
  instead of a hardcoded string, so it stays in sync with pyproject.toml on every
  release. Tests assert against openjarvis.__version__ rather than a literal.
- Bump actions/checkout@v4 → @v6 and astral-sh/setup-uv@v4 → @v8 across every
  workflow ahead of the 2026-06-02 Node.js 20 deprecation on GitHub Actions runners.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -22,7 +22,7 @@ jobs:
           python-version: "3.12"
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v8
 
       - name: Install dependencies
         run: uv sync --extra dev
@@ -33,7 +33,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -54,7 +54,7 @@ jobs:
           restore-keys: rust-${{ runner.os }}-
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v8
 
       - name: Install dependencies
         run: uv sync --extra dev
@@ -71,7 +71,7 @@ jobs:
       run:
         working-directory: rust
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable

.github/workflows/claude-issues.yml

@@ -31,7 +31,7 @@ jobs:
        contains(github.event.comment.body, '@claude') &&
        github.actor != 'claude[bot]')
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/claude-review.yml

@@ -34,7 +34,7 @@ jobs:
        contains(github.event.comment.body, '@claude') &&
        github.actor != 'claude[bot]')
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Read review instructions
         id: review

.github/workflows/desktop.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install system dependencies
         run: |
@@ -113,7 +113,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install system dependencies (Linux)
         if: matrix.platform == 'ubuntu-22.04'

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -36,7 +36,7 @@ jobs:
           python-version: "3.12"
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v8
 
       - name: Install dependencies
         run: uv sync --extra docs

.github/workflows/frontend.yml

@@ -24,7 +24,7 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:

.github/workflows/pypi-publish.yml

@@ -17,10 +17,10 @@ jobs:
     runs-on: ubuntu-latest
     environment: pypi
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v8
 
       - name: Build package
         run: uv build

.github/workflows/track-clones.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.TRAFFIC_TOKEN }}
 

src/openjarvis/__init__.py

@@ -2,8 +2,14 @@
 
 from __future__ import annotations
 
-__version__ = "0.1.0"
+from importlib.metadata import PackageNotFoundError
+from importlib.metadata import version as _pkg_version
 
 from openjarvis.sdk import Jarvis, JarvisSystem, MemoryHandle, SystemBuilder
 
+try:
+    __version__ = _pkg_version("openjarvis")
+except PackageNotFoundError:  # pragma: no cover — uninstalled source tree
+    __version__ = "0.0.0+unknown"
+
 __all__ = ["Jarvis", "JarvisSystem", "MemoryHandle", "SystemBuilder", "__version__"]

tests/cli/test_cli.py

@@ -7,6 +7,7 @@ from unittest import mock
 
 from click.testing import CliRunner
 
+import openjarvis
 from openjarvis.cli import cli
 
 
@@ -19,7 +20,7 @@ class TestCLI:
     def test_version(self) -> None:
         result = CliRunner().invoke(cli, ["--version"])
         assert result.exit_code == 0
-        assert "0.1.0" in result.output
+        assert openjarvis.__version__ in result.output
 
     def test_ask_requires_query(self) -> None:
         result = CliRunner().invoke(cli, ["ask"])

tests/sdk/test_sdk.py

@@ -6,6 +6,7 @@ from unittest.mock import MagicMock, patch
 
 import pytest
 
+import openjarvis
 from openjarvis.core.config import JarvisConfig
 from openjarvis.sdk import Jarvis, MemoryHandle
 
@@ -38,7 +39,7 @@ class TestJarvisInit:
 
     def test_version_property(self):
         j = Jarvis(config=JarvisConfig())
-        assert j.version == "0.1.0"
+        assert j.version == openjarvis.__version__
         j.close()
 
     def test_engine_key_override(self):