dev.12: R105 fixes

a massive diff due to infrastructure work
the completion pane moved to the left of chat
no other intended changes for users

server.js

@@ -1,35 +1,33 @@
 import {readFileSync} from 'node:fs'
 import {createServer} from 'node:http'
 
-function stamp_cors(rx) {
-	rx.setHeader('Access-Control-Max-Age', '86400')
-	rx.setHeader('Access-Control-Allow-Private-Network', 'true')
-	rx.setHeader('Access-Control-Allow-Origin', '*')
-	rx.setHeader('Access-Control-Allow-Methods', 'GET, OPTIONS')
-	rx.setHeader('Access-Control-Allow-Headers', '*')
-	// rx.setHeader('Access-Control-Allow-Credentials', 'false') // omit this header to disallow
+const config = {host: '127.0.0.1', port: 9696}
+
+const h_cors = {
+	'Access-Control-Max-Age': '86400',
+	'Access-Control-Allow-Private-Network': 'true',
+	'Access-Control-Allow-Origin': '*',
+	'Access-Control-Allow-Methods': 'GET, OPTIONS',
+	'Access-Control-Allow-Headers': '*',
+	// 'Access-Control-Allow-Credentials': 'false', // omit this header to disallow
+}
+const h_all = Object.assign({
+	'Content-Type': 'text/javascript',
+	'Cache-Control': 'no-cache',
+}, h_cors)
+
+/**
+ * @typedef {import('node:http').ServerResponse} ServerResponse
+ * @type {Record<string,function(ServerResponse):void>}
+ */
+const resp = {
+	GET(rx) { rx.writeHead(200, h_all); rx.write(readFileSync('./mbchc.mjs')) },
+	OPTIONS(rx) { rx.writeHead(204, h_cors) },
 }
 
 const server = createServer((rq, rx) => {
-	switch (rq.method) {
-		case 'GET': {
-			rx.statusCode = 200
-			stamp_cors(rx)
-			rx.setHeader('Content-Type', 'text/javascript')
-			rx.setHeader('Cache-Control', 'no-cache')
-			const data = readFileSync('./mbchc.mjs')
-			rx.write(data)
-			break
-		}
-		case 'OPTIONS': {
-			rx.statusCode = 204
-			stamp_cors(rx)
-			break
-		}
-		default: {
-			rx.statusCode = 400
-		}
-	}
+	resp[rq.method] && (new URL(`http://${config.host}:${config.port}${rq.url}`)).pathname === '/' ? resp[rq.method](rx) : rx.writeHead(400)
 	rx.end()
+	console.log('%s %d %s %s', (new Date()).toISOString(), rx.statusCode, rq.method, rq.url)
 })
-server.listen(9696, '127.0.0.1', () => console.log('Server started.'))
+server.listen(config.port, config.host, () => console.log(`Server started at http://${config.host}:${config.port}`))