Add PyPI packaging metadata and Trusted Publishing workflow

Complete project metadata (readme, urls, classifiers, keywords) for the
PyPI page, absolute README image URL so it renders off-repo, and a
release-triggered publish workflow using OIDC Trusted Publishing (no
stored token). Build and twine check pass; wheel verified in a clean
environment.

Author: bob7123

.github/workflows/publish.yml

@@ -0,0 +1,45 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Build sdist and wheel
+        run: |
+          pip install build
+          python -m build
+      - name: Check distributions
+        run: |
+          pip install twine
+          twine check dist/*
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/project/test-data-workbench/
+    permissions:
+      id-token: write   # OIDC token for PyPI Trusted Publishing; no stored secret
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

README.md

@@ -10,7 +10,7 @@ Point it at a database. Get realistic, relationally intact test data back.
 
 Test Data Workbench reflects an unknown schema, classifies what each table represents, and emits working Python generators for it: dependency-ordered, referentially consistent, and readable. The output is not a black box; it is plain generator code you can read, edit, and commit.
 
-<p align="center"><img src="docs/assets/tdw-demo.svg" alt="tdw demo: schema analysis, PII flagging, and generator deployment against a SQLite database"></p>
+<p align="center"><img src="https://raw.githubusercontent.com/VolanticSystems/test-data-workbench/main/docs/assets/tdw-demo.svg" alt="tdw demo: schema analysis, PII flagging, and generator deployment against a SQLite database"></p>
 
 **Documentation:** https://volanticsystems.github.io/test-data-workbench/
 

pyproject.toml

@@ -6,9 +6,22 @@ build-backend = "hatchling.build"
 name = "test-data-workbench"
 version = "1.0.0"
 description = "Schema-adaptive test data generator: point it at a database, get realistic relational test data back"
+readme = "README.md"
 requires-python = ">=3.10"
 license = "Apache-2.0"
 authors = [{name = "Volantic Systems"}]
+keywords = ["test-data", "synthetic-data", "fixtures", "sqlalchemy", "faker", "code-generation", "testing", "database"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Software Development :: Testing",
+    "Topic :: Database",
+    "Operating System :: OS Independent",
+]
 dependencies = [
     "fastapi>=0.104.1",
     "uvicorn>=0.24.0",
@@ -22,6 +35,12 @@ dependencies = [
     "rich>=13.7.0",
 ]
 
+[project.urls]
+Homepage = "https://github.com/VolanticSystems/test-data-workbench"
+Documentation = "https://volanticsystems.github.io/test-data-workbench/"
+Repository = "https://github.com/VolanticSystems/test-data-workbench"
+Issues = "https://github.com/VolanticSystems/test-data-workbench/issues"
+
 [project.scripts]
 tdw = "test_data_workbench.cli.main:main"