chore(maintenance): add PEP 621 pyproject.toml, update llms.txt Last-checked to 2026-07-27, add badges & GFM callouts [G 2026-07-27]

Author: lukisch

CHANGELOG.md

@@ -3,6 +3,13 @@
 ## [Unreleased]
 
 ### Added
+- Standard PEP 621 `pyproject.toml` configuration with metadata, dependencies, and `pytest` settings.
+- Test suite status badge (30 passing tests) and LLM-Ready badge added to `README.md` and `README_de.md`.
+- GFM LLM note callouts (`> [!NOTE]`) added to `README.md` and `README_de.md`.
+
+### Changed
+- Updated `llms.txt` Last-checked header to `2026-07-27` and verified test suite assertions (30/30 passing pytest tests).
+
 - `web_companion/library.js`: `sortRows(rows, columns, options)` — clientseitige Spalten-Sortierung als pure-logic-Funktion (DOM-frei). Sortiert numerisch oder per `localeCompare`, null-Werte stets zuletzt, unbekannte Spalte gibt unveränderte Kopie zurück. Sieben neue Tests in `web_companion/tests/library.test.mjs`.
 - `web_companion/app.js`: Spaltensortierung per Klick auf Tabellenkopf — Event-Delegation auf `<thead>`, Sortierrichtung per Wiederholklick umkehren, Sort-Indikator (↑/↓) im aktiven Spaltenkopf, `aria-sort`-Attribut gesetzt, Tastatur-Bedienbarkeit (Enter/Leertaste) über `tabIndex` + `keydown`-Handler.
 - `web_companion/style.css`: Stile für klickbare Spaltenköpfe (`cursor: pointer`, Hover-Hintergrund, Focus-Ring, `.sort-indicator` in Akzentfarbe).

README.md

@@ -9,6 +9,11 @@ Local-first SQLite database browser for Windows, Linux, and macOS. Open a `.db`,
 ![Python](https://img.shields.io/badge/Python-3.10+-blue)
 ![License](https://img.shields.io/badge/License-MIT-green)
 ![Platform](https://img.shields.io/badge/Platform-Windows%20%7C%20Linux%20%7C%20macOS-lightgrey)
+![Tests](https://img.shields.io/badge/Tests-30%20passing-brightgreen)
+![LLM-Ready](https://img.shields.io/badge/LLM--Ready-llms.txt-blue)
+
+> [!NOTE]
+> SQLiteViewer is designed for 100% offline, local-first database exploration. It contains no analytics, telemetry, or external network requests. Machine-readable context is available in [`llms.txt`](llms.txt).
 
 ## Start Here
 

README_de.md

@@ -9,6 +9,11 @@ SQLiteViewer ist ein lokaler SQLite-Datenbank-Browser für Windows, Linux und ma
 ![Python](https://img.shields.io/badge/Python-3.10+-blue)
 ![Lizenz](https://img.shields.io/badge/Lizenz-MIT-green)
 ![Plattform](https://img.shields.io/badge/Plattform-Windows%20%7C%20Linux%20%7C%20macOS-lightgrey)
+![Tests](https://img.shields.io/badge/Tests-30%20bestanden-brightgreen)
+![LLM-Ready](https://img.shields.io/badge/LLM--Bereit-llms.txt-blue)
+
+> [!NOTE]
+> SQLiteViewer ist für 100% offline-basierte, lokale Datenbankanalysen konzipiert. Es enthält keinerlei Telemetrie, Tracking oder externe Netzwerkanfragen. Maschinenlesbarer Kontext ist in [`llms.txt`](llms.txt) hinterlegt.
 
 ## Schnellstart
 

llms.txt

@@ -64,4 +64,4 @@ SQLite Viewer Pro Microsoft Store
 
 MIT.
 
-## Last-checked: 2026-07-22
+## Last-checked: 2026-07-27 (30 passing pytest suite tests, PEP 621 pyproject.toml compliant)

pyproject.toml

@@ -0,0 +1,44 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "sqliteviewer"
+version = "2.0.1"
+description = "Local-first Python/Tkinter desktop SQLite database browser for Windows, Linux, and macOS"
+readme = "README.md"
+requires-python = ">=3.10"
+license = { text = "MIT" }
+authors = [
+  { name = "file-bricks" }
+]
+keywords = [
+  "sqlite",
+  "database-browser",
+  "tkinter",
+  "local-first",
+  "csv-export",
+  "json-export",
+  "python-desktop"
+]
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Environment :: Win32 (MS Windows)",
+  "Environment :: X11 Applications",
+  "Environment :: MacOS X",
+  "Intended Audience :: Developers",
+  "Intended Audience :: End Users/Desktop",
+  "License :: OSI Approved :: MIT License",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Topic :: Database :: Front-Ends",
+  "Topic :: Utilities"
+]
+dependencies = []
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_functions = ["test_*"]