fix: exclude .claude/ directory from builds and Git tracking

Resolves build failures caused by .claude/ dev tools being included in packages:
- Add .claude/ to .gitignore to prevent tracking of local dev tools
- Add build exclusions for both wheel and sdist targets
- Exclude .cursor/, .uckn/, and temp files from packaging

This addresses the ERROR: 'uckn_framework-1.0.0/.claude/commands/references'
absolute path link issue that was breaking the build process.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: MementoRC

.gitignore

@@ -111,8 +111,8 @@ node_modules/
 *.sw?
 # OS specific
 
-# Claude Code local settings
-.claude/settings.local.json
+# Claude Code local settings and tools
+.claude/
 /.taskmaster/
 .mcp.json
 

pyproject.toml

@@ -45,6 +45,25 @@ build-backend = "hatchling.build"
 
 [tool.hatch.build.targets.wheel]
 packages = ["src/uckn"]
+exclude = [
+    ".claude",
+    ".claude/**",
+    ".cursor", 
+    ".cursor/**",
+    "*.tmp",
+    "*.temp"
+]
+
+[tool.hatch.build.targets.sdist]
+exclude = [
+    ".claude",
+    ".claude/**",
+    ".cursor",
+    ".cursor/**", 
+    "*.tmp",
+    "*.temp",
+    ".uckn"
+]
 
 [tool.pixi.project]
 channels = ["conda-forge", "pytorch"]