feat(debugger): integrate NX Tcl Remote Debugger into NX Postprocessor

Embed the NX Tcl Remote Debugger into the NX Postprocessor extension.
Add a new debugging client, protocol, and adapter logic to
drive attach/launch, breakpoints, stepping, and evaluation
via the runtime adapter.

- Introduced a client debugger with a new adapter and protocol
- Wired attach/launch, breakpoints, stepping, and evaluation
- Updated docs and licensing to reflect the embedded debugger

.vscodeignore

@@ -9,6 +9,7 @@ vite.config.js
 .prettierrc.json
 esbuild.js
 .gitea
+**/.ruff_cache/**
 .venv/**
 .nox/**
 server/.venv/**
@@ -18,4 +19,7 @@ server/.nox/**
 **/requirements.in
 **/server/src/_debug_server.py
 server/noxfile.py
-client/**
+server/.claude/**
+server/tests/**
+client/**
+dist/**/*.map