Release Package Tools 0.1.0

SOURCE.md

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+# Source identity
+
+- Project: Package Tools
+- Version: 0.1.0
+- Canonical repository: https://git.add-ideas.de/lotobo/package-tools
+- Licence: GPL-3.0-or-later
+- Toolbox app id: `de.add-ideas.package-tools`
+
+The release ZIP is produced from `dist/` by `scripts/package-release.mjs`.
+Entries are sorted, permissions and timestamps are normalized, and a SHA-256
+sidecar is written. `package.json`, `src/version.ts`, the source manifest and
+generated `toolbox-app.json` must agree on the version.
+
+The ZIP parsing/path-policy modules were adapted from the GPL-3.0-or-later
+add·ideas Archive Tools project and are maintained here so Package Tools can
+apply its narrower compound-package analysis model.