feat: align extension with patchloom CLI v0.6.0

Update recommended CLI version from 0.5.0 to 0.6.0 in README.md.

Patchloom 0.6.0 adds 11 AST MCP tools (43 total), a declarative
MCP tool registry, spawn_blocking for concurrent performance, and
tree-sitter parse tree caching.

Signed-off-by: Sebastien Tardif <sebtardif@ncf.ca>

Author: SebTardif

README.md

@@ -148,7 +148,7 @@ The extension detects outdated CLI builds and warns with upgrade guidance. It re
 Set `patchloom.path` in settings, or add the CLI to your `PATH`.
 
 **CLI compatibility warning**
-Run `Patchloom: Open Releases` to download the latest release. The extension requires 0.3.0 or newer; 0.5.0 is recommended.
+Run `Patchloom: Open Releases` to download the latest release. The extension requires 0.3.0 or newer; 0.6.0 is recommended.
 
 **MCP config not injected**
 Run `Patchloom: Configure MCP` and select the target editor config.
@@ -183,7 +183,7 @@ File bugs and feature requests at [patchloom/patchloom-vscode/issues](https://gi
 ## Requirements
 
 - VS Code 1.90 or newer (or compatible editors: Cursor, Windsurf, VSCodium)
-- [Patchloom CLI](https://github.com/patchloom/patchloom) 0.3.0 or newer (0.5.0+ recommended for latest features including HTTP MCP transport, execute_plan, and expanded library API)
+- [Patchloom CLI](https://github.com/patchloom/patchloom) 0.3.0 or newer (0.6.0+ recommended for 43 MCP tools including 11 AST tools, declarative MCP registry, and concurrent performance improvements)
 
 ## Contributing