fix: migrate to uv; fix pydantic schema error

- add uv.lock for reproducible dependencies
- add .python-version file for python version consistency
- pin dependency versions in pyproject.toml (mcp>=1.11.0, pandas>=2.3.1, pytest>=8.4.1)
- remove type annotations from Image-returning functions to avoid pydantic v2 schema generation errors
  - resolves MCP server startup failure

Author: mannie-exe

.python-version

@@ -0,0 +1 @@
+3.10

kicad_mcp/tools/export_tools.py

@@ -20,7 +20,7 @@ def register_export_tools(mcp: FastMCP) -> None:
     """
 
     @mcp.tool()
-    async def generate_pcb_thumbnail(project_path: str, ctx: Context) -> Optional[Image]:
+    async def generate_pcb_thumbnail(project_path: str, ctx: Context):
         """Generate a thumbnail image of a KiCad PCB layout using kicad-cli.
 
         Args:
@@ -88,14 +88,14 @@ async def generate_pcb_thumbnail(project_path: str, ctx: Context) -> Optional[Im
             return None
 
     @mcp.tool()
-    async def generate_project_thumbnail(project_path: str, ctx: Context) -> Optional[Image]:
+    async def generate_project_thumbnail(project_path: str, ctx: Context):
         """Generate a thumbnail of a KiCad project's PCB layout (Alias for generate_pcb_thumbnail)."""
         # This function now just calls the main CLI-based thumbnail generator
         print(f"generate_project_thumbnail called, redirecting to generate_pcb_thumbnail for {project_path}")
         return await generate_pcb_thumbnail(project_path, ctx)
 
 # Helper functions for thumbnail generation
-async def generate_thumbnail_with_cli(pcb_file: str, ctx: Context) -> Optional[Image]:
+async def generate_thumbnail_with_cli(pcb_file: str, ctx: Context):
     """Generate PCB thumbnail using command line tools.
     This is a fallback method when the kicad Python module is not available or fails.
 

pyproject.toml

@@ -5,29 +5,23 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "kicad-mcp"
 version = "0.1.0"
-authors = [
-  { name="Lama Al Rajih", email="[email protected]" },
-]
+authors = [{ name = "Lama Al Rajih", email = "[email protected]" }]
 description = "Model Context Protocol server for KiCad on Mac, Windows, and Linux"
 readme = "README.md"
 requires-python = ">=3.10"
 classifiers = [
-    "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
-    "Programming Language :: Python :: 3.12",
-    "License :: OSI Approved :: MIT License",
-    "Operating System :: OS Independent",
-    "Development Status :: 4 - Beta",
-    "Intended Audience :: Developers",
-    "Topic :: Software Development :: Libraries :: Python Modules",
-    "Topic :: Scientific/Engineering :: Electronic Design Automation (EDA)",
-]
-dependencies = [
-    "mcp[cli]",
-    "pandas",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "License :: OSI Approved :: MIT License",
+  "Operating System :: OS Independent",
+  "Development Status :: 4 - Beta",
+  "Intended Audience :: Developers",
+  "Topic :: Software Development :: Libraries :: Python Modules",
+  "Topic :: Scientific/Engineering :: Electronic Design Automation (EDA)",
 ]
-keywords = ["kicad", "mcp", "model-context-protocol", "eda", "pcb"]
+dependencies = ["mcp[cli]>=1.11.0", "pandas>=2.3.1", "pytest>=8.4.1"]
 
 [project.urls]
 "Homepage" = "https://github.com/lamaalrajih/kicad-mcp"