refactor: SDK files

- remove SDK files - moved to mingholy/feat/sdk-draft branch
- revert package.json & launch.json changes

.vscode/launch.json

@@ -73,15 +73,7 @@
       "request": "launch",
       "name": "Launch CLI Non-Interactive",
       "runtimeExecutable": "npm",
-      "runtimeArgs": [
-        "run",
-        "start",
-        "--",
-        "-p",
-        "${input:prompt}",
-        "--output-format",
-        "json"
-      ],
+      "runtimeArgs": ["run", "start", "--", "-p", "${input:prompt}", "-y"],
       "skipFiles": ["<node_internals>/**"],
       "cwd": "${workspaceFolder}",
       "console": "integratedTerminal",