chore(deps): bump gp-sphinx 0.0.1a8 -> 0.0.1a9

why: Pick up the FastMCP prompts/resources autodoc surface and the
  companion typehints / theme / layout fixes shipped in gp-sphinx
  PR #21 (git-pull/gp-sphinx#21).
what:
- Bump every gp-sphinx workspace pin from 0.0.1a8 to 0.0.1a9 in
  pyproject.toml
- uv.lock refreshed to match

Author: tony

pyproject.toml

@@ -56,9 +56,9 @@ libtmux-mcp = "libtmux_mcp:main"
 [dependency-groups]
 dev = [
   # Docs
-  "gp-sphinx==0.0.1a8",
-  "sphinx-autodoc-api-style==0.0.1a8",
-  "sphinx-autodoc-fastmcp==0.0.1a8",
+  "gp-sphinx==0.0.1a9",
+  "sphinx-autodoc-api-style==0.0.1a9",
+  "sphinx-autodoc-fastmcp==0.0.1a9",
   "gp-libs",
   "sphinx-autobuild",
   # Testing
@@ -79,9 +79,9 @@ dev = [
 ]
 
 docs = [
-  "gp-sphinx==0.0.1a8",
-  "sphinx-autodoc-api-style==0.0.1a8",
-  "sphinx-autodoc-fastmcp==0.0.1a8",
+  "gp-sphinx==0.0.1a9",
+  "sphinx-autodoc-api-style==0.0.1a9",
+  "sphinx-autodoc-fastmcp==0.0.1a9",
   "gp-libs",
   "sphinx-autobuild",
 ]