chore(vscode): migrate build chain from TypeScript to AffineScript (#35)

- Swap extension.ts for extension.affine (landed in #19)
- Update package.json main to .out/extension.cjs
- Update compile script to use affinescript compiler
- Remove tsc-specific configuration and devDependencies

Step 1 (follow-up) of the TS->AS migration campaign (#240).

Author: hyperpolymath

editors/vscode/package.json

@@ -26,7 +26,7 @@
   "activationEvents": [
     "onLanguage:phronesis"
   ],
-  "main": "./out/extension.js",
+  "main": "./out/extension.cjs",
   "contributes": {
     "languages": [
       {
@@ -72,13 +72,12 @@
   },
   "scripts": {
     "vscode:prepublish": "npm run compile",
-    "compile": "tsc -p ./",
-    "watch": "tsc -watch -p ./"
+    "compile": "affinescript compile src/extension.affine -o out/extension.cjs --vscode-extension",
+    "watch": "echo 'watch mode not implemented for AffineScript source — re-run npm run compile'"
   },
   "devDependencies": {
     "@types/node": "^16.0.0",
-    "@types/vscode": "^1.60.0",
-    "typescript": "^4.9.0"
+    "@types/vscode": "^1.60.0"
   },
   "dependencies": {
     "vscode-languageclient": "^8.0.0"