py(deps): gp-sphinx 0.0.1a6 -> 0.0.1a7

why: Pick up the sphinx-argparse-neo multi-page duplicate-label
scoping fix landed in gp-sphinx PR #16, and finish the migration
away from the in-tree docs/_ext/fastmcp_autodoc extension that
moved to the gp-sphinx sphinx-autodoc-fastmcp package. The
[tool.uv.sources] block pinned gp-sphinx / sphinx-autodoc-api-style /
sphinx-autodoc-fastmcp at ../gp-sphinx/packages/*, which only resolves
in the local dev workspace — CI has been failing at the uv sync step
continuously since the block was introduced. Alongside that block,
docs(conf): Use sphinx_autodoc_fastmcp and remove local _ext
deleted docs/_ext/fastmcp_autodoc.py but left the tests/docs/_ext
harness pointing at it, so once CI could actually install deps it
would fail again at pytest collection on ImportError: fastmcp_autodoc.
what:
- Drop the [tool.uv.sources] block so all three packages resolve
  from PyPI in every environment
- Bump gp-sphinx and sibling package pins from 0.0.1a6 to 0.0.1a7
- Remove the orphaned tests/docs/_ext/ harness (test_fastmcp_autodoc,
  conftest that added the removed docs/_ext to sys.path, and the
  tests/docs package markers); equivalent coverage now lives in
  gp-sphinx's sphinx-autodoc-fastmcp test suite
- Drop the dead fastmcp_autodoc and tests.docs.* entries from the
  mypy overrides table
- Regenerate uv.lock

Author: tony

pyproject.toml

@@ -53,18 +53,12 @@ Changes = "https://github.com/tmux-python/libtmux-mcp/blob/master/CHANGES"
 [project.scripts]
 libtmux-mcp = "libtmux_mcp:main"
 
-# Sibling clone: ../gp-sphinx (git-pull/gp-sphinx). Override PyPI pins for local dev.
-[tool.uv.sources]
-gp-sphinx = { path = "../gp-sphinx/packages/gp-sphinx", editable = true }
-sphinx-autodoc-api-style = { path = "../gp-sphinx/packages/sphinx-autodoc-api-style", editable = true }
-sphinx-autodoc-fastmcp = { path = "../gp-sphinx/packages/sphinx-autodoc-fastmcp", editable = true }
-
 [dependency-groups]
 dev = [
   # Docs
-  "gp-sphinx==0.0.1a6",
-  "sphinx-autodoc-api-style==0.0.1a6",
-  "sphinx-autodoc-fastmcp==0.0.1a6",
+  "gp-sphinx==0.0.1a7",
+  "sphinx-autodoc-api-style==0.0.1a7",
+  "sphinx-autodoc-fastmcp==0.0.1a7",
   "gp-libs",
   "sphinx-autobuild",
   # Testing
@@ -85,9 +79,9 @@ dev = [
 ]
 
 docs = [
-  "gp-sphinx==0.0.1a6",
-  "sphinx-autodoc-api-style==0.0.1a6",
-  "sphinx-autodoc-fastmcp==0.0.1a6",
+  "gp-sphinx==0.0.1a7",
+  "sphinx-autodoc-api-style==0.0.1a7",
+  "sphinx-autodoc-fastmcp==0.0.1a7",
   "gp-libs",
   "sphinx-autobuild",
 ]
@@ -123,13 +117,9 @@ files = [
 ]
 
 [[tool.mypy.overrides]]
-module = ["fastmcp_autodoc", "sphinx_autodoc_fastmcp", "sphinx_autodoc_fastmcp.*", "docutils", "docutils.*"]
+module = ["sphinx_autodoc_fastmcp", "sphinx_autodoc_fastmcp.*", "docutils", "docutils.*"]
 ignore_missing_imports = true
 
-[[tool.mypy.overrides]]
-module = ["tests.docs.*"]
-disable_error_code = ["untyped-decorator"]
-
 [tool.coverage.run]
 branch = true
 parallel = true