ci: add release-please for automated versioning and changelog

Adds the release-please GitHub Action (python release type), config, and
manifest pinned at the current 0.2.0. The version lives in both
pyproject.toml and src/deepzero/__init__.py; the latter is bumped via
extra-files plus an x-release-please-version annotation.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.github/workflows/release-please.yml

@@ -0,0 +1,19 @@
+name: release-please
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: googleapis/release-please-action@v4
+        with:
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.2.0"
+}

release-please-config.json

@@ -0,0 +1,30 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "bootstrap-sha": null,
+  "packages": {
+    ".": {
+      "release-type": "python",
+      "package-name": "deepzero",
+      "changelog-path": "CHANGELOG.md",
+      "bump-minor-pre-major": true,
+      "draft": false,
+      "prerelease": false,
+      "include-v-in-tag": true,
+      "extra-files": [
+        "src/deepzero/__init__.py"
+      ]
+    }
+  },
+  "changelog-sections": [
+    { "type": "feat", "section": "Features" },
+    { "type": "fix", "section": "Bug Fixes" },
+    { "type": "perf", "section": "Performance" },
+    { "type": "refactor", "section": "Refactors" },
+    { "type": "docs", "section": "Documentation" },
+    { "type": "revert", "section": "Reverts" },
+    { "type": "test", "section": "Tests", "hidden": true },
+    { "type": "build", "section": "Build System", "hidden": true },
+    { "type": "ci", "section": "Continuous Integration", "hidden": true },
+    { "type": "chore", "section": "Chores", "hidden": true }
+  ]
+}

src/deepzero/__init__.py

@@ -1,2 +1,2 @@
 # deepzero - configurable, data-driven binary analysis pipeline
-__version__ = "0.2.0"
+__version__ = "0.2.0"  # x-release-please-version