py(deps[uv]) Pin gp-sphinx workspace at unreleased SPA-nav iOS fix

why: Validate the upstream gp-sphinx fix end-to-end on the published
docs site before 0.0.1a12 ships. The fix reorders pushState above
swap(doc) in spa-nav.js so relative href/src in the swapped DOM
resolve against the new baseURI; without it, iPad Safari (in
landscape or with "Request Desktop Site") blanks the sidebar logo
after every cross-depth SPA navigation.

what:
- Add [tool.uv.sources] overrides pinning gp-sphinx and
  sphinx-gp-theme to git ref 652ce020 on
  fix/spa-nav-ios-relative-urls.
- Refresh uv.lock; transitive workspace siblings
  (sphinx-autodoc-typehints-gp, sphinx-fonts, sphinx-gp-opengraph,
  sphinx-gp-sitemap) follow the same git ref automatically.
- Temporary; revert this block once gp-sphinx 0.0.1a12 is on PyPI.

Author: tony

pyproject.toml

@@ -134,6 +134,14 @@ sphinx-gp-theme = false
 sphinx-ux-autodoc-layout = false
 sphinx-ux-badges = false
 
+[tool.uv.sources]
+# Temporarily pin gp-sphinx workspace packages at an unreleased commit
+# that fixes the iOS Safari sidebar-logo blank after SPA navigation
+# (gp-sphinx commit 652ce02, branch fix/spa-nav-ios-relative-urls).
+# Revert to PyPI wheels once 0.0.1a12 ships.
+gp-sphinx = { git = "https://github.com/git-pull/gp-sphinx.git", rev = "652ce020b8003a496732df805fbb072d91b559dc", subdirectory = "packages/gp-sphinx" }
+sphinx-gp-theme = { git = "https://github.com/git-pull/gp-sphinx.git", rev = "652ce020b8003a496732df805fbb072d91b559dc", subdirectory = "packages/sphinx-gp-theme" }
+
 [tool.mypy]
 strict = true
 python_version = "3.10"