dcm-zed-extension

Merge pull request #1 from mhadaily/majid/fix-doc

update doc to match DCM official doc

Fix repository URL in extension.toml to reflect correct GitHub path.

Update repository URL in extension.toml and add LICENSE file with MIT License.

Initialize DCM extension for Zed IDE with core functionality, including configuration, command handling, and language server integration. Add necessary files: .gitignore, Cargo.toml, extension.toml, Justfile, README.md, and source files for commands, config, language server, and utilities.