chore(main): release nlr-gat 0.1.1

[github-actions]

🤖 I have created a release beep boop

0.1.1 (2026-08-04)

Features

• per-format install extras (nlr-gat[sienna|plexos|reeds|...]) (3fa7d90)
• PJM 5-bus long-horizon fixture (SIM_SYSTEM=pjm5) (6c9d379)
• solve the sienna fixture with DCPPowerModel to produce line flows (d2da7fe), closes #4

Bug Fixes

• add pyarrow to the plexos extra (needed by the duckdb engine) (d4818ec)
• enable balance slacks for the DCP network model (a2db2eb)
• expand '~' in solution-file paths; fail clearly when nothing resolves (9eac893), closes #25
• route component-list diagnostics through the logger (fa7f159)

Refactoring

• adopt src layout (gat/ -> src/gat/) (1840f76)

Documentation

• add API-stability and H5PLEXOS.jl deprecation warning boxes to README (407ea72)
• add model-vs-model comparison gallery example (UC / ED / Emulator) (e1f9b84)
• add status badges to README (d6e1c24)
• add v0.1.1 changelog entry (bfe5754)
• consistent Toolkit branding and lab naming; disclaimer section (3c62084)
• guard Plexos gallery example when no fixture is available (b48b4cf)
• README warning boxes — API stability + H5PLEXOS.jl deprecation (b1353f4)
• update repository URLs after rename to GridAnalysisToolkit (d993fcf)

CI/CD

• automated releases via release-please (modeled on R2X) (2fd9724)
• automated releases via release-please (modeled on R2X) (2eea598)
• enforce black formatting and minimal ruff lint gate (2158ccf), closes #2
• exclude README from the sienna fixture cache key (f9f8b5d)
• install the 'all' extra for the Sphinx docs build (bbc1172)
• publish to PyPI via trusted publishing on release (4653d0e)

Tests

• regenerate baselines against main's refreshed fixture cache (8a86c3a)
• regenerate baselines against the DCP-solved fixture (509ebcc)
• regenerate sienna v4 baselines against the public repo's CI fixture (e9d1a59)
• regenerate sienna v4 baselines against the refreshed CI fixture (e4b1dcb)
• regenerate v4 baselines against main's refreshed fixture cache (452e1f9)
• regenerate v4 baselines against this PR's fixture build (4f7616a)

---

This PR was generated with Release Please. See documentation.

[github-actions]

🤖 Created releases:

• nlr-gat-v0.1.1

🌻