Initial commit - UCXL VS Code extension

- Added UCXL VS Code extension with syntax highlighting
- Implemented language configuration and grammar definitions
- Created extension package with examples and documentation
- Added syntax highlighting for UCXL code structures

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

Co-Authored-By: Claude <noreply@anthropic.com>

examples/ucxl_example.py

@@ -0,0 +1,17 @@
+import posixpath
+
+def ucxl_path_join(*args):
+    """
+    Join multiple path components into a single UCXL path.
+    
+    Args:
+        *args: Path components to join.
+        
+    Returns:
+        str: A single UCXL path.
+    """
+    ucxl = "ucxl://AB001:dev@project:task/~~/policies/linting/details.md"
+
+    return posixpath.join(*args)
+
+

examples/ucxl_example.rs

@@ -0,0 +1,5 @@
+
+
+fn main() {
+    let context = ucxl::Context::from(ucxl://any:developer@chorus:website-redesign/#/db/connection/credentials).expect("Failed to create UCXL context");
+}