send X-Deeplake-Client: hivemind/<version> on deeplake-api calls

[kaghni]

Summary

• Adds X-Deeplake-Client: hivemind/<version> header on every outbound request to deeplake-api, so the backend can attribute hivemind traffic for analytics (signup source, login source, daily retention rollup).
• New src/utils/client-header.ts with a single deeplakeClientHeader() helper. Version is injected at bundle time via an esbuild __HIVEMIND_VERSION__ define (same pattern openclaw already uses for its own version). Dev / tsx / vitest runs fall back to "dev" so nothing crashes without a bundle.
• Applied at every fetch site: DeepLakeAPI (query + listTables), commands/auth.ts (whoami / orgs / workspaces / device-code / device-token), and both wiki-worker.ts entry points (CC + Codex).
• Rebuilt claude-code/bundle/ and codex/bundle/ — grep confirms the version literal + header template both land in every shipped bundle.

No PostHog SDK added to hivemind. All analytics stay server-side in deeplake-api (PR activeloopai/deeplake-api#193).

Test plan

• npm run typecheck clean
• npm test — all 966 tests pass
• npm run build produces bundles; grep confirms "0.6.45" + `hivemind/${pluginVersion()}` are present in CC + Codex bundles
• Runtime intercept-fetch smoke: calling requestDeviceCode() emits the header (confirmed X-Deeplake-Client: hivemind/dev in unbundled dev; bundle path gets hivemind/0.6.45)
• After merge of deeplake-api#193, end-to-end: hivemind login → PostHog shows login_completed with login_source: hivemind, hivemind_version: 0.6.45
• After a hivemind session writes to its sessions table, the next 00:05 UTC rollup emits hivemind_daily_active with matching sessions_count

[claude]

Claude finished @kaghni's task in 59s —— View job

---

One inline comment: the try/catch in pluginVersion() is dead code — typeof never throws a ReferenceError in JS, so the catch block is unreachable and the comment is misleading.

[github-actions]

Coverage Report

Scope: files changed in this PR. Enforced threshold: 90% per metric (per file via vitest.config.ts).

Status	Category	Percentage	Covered / Total
🔴	Lines	75.42% (🎯 90%)	316 / 419
🔴	Statements	73.40% (🎯 90%)	356 / 485
🔴	Functions	68.60% (🎯 90%)	59 / 86
🔴	Branches	67.80% (🎯 90%)	179 / 264

File Coverage — 5 files changed

File	Stmts	Branches	Functions	Lines
src/commands/auth.ts	🔴 0.0%	🔴 0.0%	🔴 0.0%	🔴 0.0%
src/deeplake-api.ts	🟢 98.4%	🟢 91.6%	🟢 97.3%	🟢 99.4%
src/hooks/codex/wiki-worker.ts	🟢 98.8%	🟢 97.1%	🟢 100.0%	🟢 98.7%
src/hooks/wiki-worker.ts	🟢 98.8%	🟢 97.1%	🟢 100.0%	🟢 98.7%
src/utils/client-header.ts	🔴 85.7%	🔴 50.0%	🟢 100.0%	🔴 85.7%

_{Generated for commit a25e248.}

[claude]

The try/catch around typeof __HIVEMIND_VERSION__ is unnecessary and the comment is incorrect — typeof never throws a ReferenceError in JavaScript; it specifically returns "undefined" for undeclared identifiers. The catch block will never execute. Drop the try/catch wrapper.

Suggested change

	function pluginVersion(): string {
	try {
	if (typeof __HIVEMIND_VERSION__ === "string" && __HIVEMIND_VERSION__) {
	return __HIVEMIND_VERSION__;
	}
	} catch { /* reference error in unbundled dev → fall through */ }
	function pluginVersion(): string {
	if (typeof __HIVEMIND_VERSION__ === "string" && __HIVEMIND_VERSION__) {
	return __HIVEMIND_VERSION__;
	}
	return "dev";
	}