feat(commandcode): quota usage dashboard, CLI-parity request, and connect timeout fixes

- Add CommandCode usage handler mirroring the official CLI /usage
  (whoami → credits/subscriptions → summary) with 5h/weekly/monthly
  quota rows, registered in services/usage.js and registry config
- Parse commandcode quota rows in ProviderLimits (remainingPercentage + $ unit)
- Match official CLI request shape: x-command-code-version 1.10.0,
  User-Agent cli, and config.environment '${platform}-${arch}, Node.js ${version}'
- Fix connect timeout unit confusion: both profile and provider pages
  now use ms with a 1s minimum guard (prevents 60ms footgun)
- Fix fetchT0 ReferenceError in base.js error path and log fetch
  diagnostics only on upstream failure
- Quota Tracker defaults to the Active account filter
- Ignore .commandcode/ CLI local state

open-sse/translator/request/openai-to-commandcode.js

@@ -191,13 +191,17 @@ export function openaiToCommandCodeRequest(
 
 	const today = new Date().toISOString().slice(0, 10);
 
+	// environment format mirrors the official command-code CLI (getEnvironmentInfo):
+	// `${platform}-${arch}, Node.js ${version}` (e.g. "darwin-arm64, Node.js v24.16.0").
+	const environment = `${process.platform}-${process.arch}, Node.js ${process.version}`;
+
 	return {
 		threadId: randomUUID(),
 		memory: "",
 		config: {
 			workingDir: process.cwd(),
 			date: today,
-			environment: process.platform,
+			environment,
 			structure: [],
 			isGitRepo: false,
 			currentBranch: "",