fix(flows): pin the local kit to relayflows 2.0.22

[kjgbot]

Why

The downloadable local flow kit (web/lib/flow-local.ts) installs relayflows 2.0.15, seven releases behind. Local users miss every fix since, most importantly AgentWorkforce/flows#484. Before that fix, a Claude agent that started a background task (for example npm ci in the background) kept claude -p alive after its final result, so the step, and the whole run, sat idle until the wall-clock limit. A 2-hour dev run was lost this way even though the agent had finished and committed after 10 minutes. Hosted runs already use 2.0.21, which includes the fix.

Change

• RELAYFLOWS_VERSION goes from 2.0.15 to 2.0.22, the current release. LOCAL_INSTALL follows, for relayflows and @relayflows/surface.
• The pin's rationale comment and the tripwire test are updated. declined (flows#438, merged as #439) has shipped since 2.0.16, and 2.0.22's executor lowers it (LOWERED_COMPLETIONS = ['success', 'needs_human', 'step_failed', 'declined']). The two ticket guards stay on done("needs_human") on purpose: the same generated source runs on Agent Relay Cloud, which has to render a declined run first. Switch them together with that Cloud change, not in a pin bump.
• Four comments that said "the 2.0.15 pin" now say "since 2.0.15". No logic change.

Verification

• Installed relayflows@2.0.22 and @relayflows/surface@2.0.22 from npm. It has the same published shape (a flows bin, nothing to import), so the preflight's resolve("relayflows/package.json") still holds.
• npx flows check with the 2.0.22 CLI returns CHECK PASSED for the generated local flow of every preset: traditional, prototype and simple.
• vitest run lib/test: 208 passed. tsc --noEmit is clean.

🤖 Generated with Claude Code

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Note

Low Risk
Version pin and documentation-only comment updates; generated flow behavior is unchanged aside from what the newer CLI/runtime provides at install time.

Overview
Bumps the downloadable local flow kit from relayflows 2.0.15 to 2.0.22, so LOCAL_INSTALL and the tripwire test match the current release. Local runs pick up fixes since 2.0.15, especially flows#484: Claude agent steps finish when Claude returns a result instead of waiting on process exit (background tasks no longer idle the run until the wall-clock limit).

Comments and tests are refreshed to record that declined has been lowerable since 2.0.16, while the two ticket-rejection guards still use done("needs_human") until Agent Relay Cloud can render declined—that switch is explicitly deferred to a Cloud change, not this pin bump. A few review-related comments now say “since 2.0.15” instead of tying wording only to the old pin. No generated flow logic changes.

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Environment	URL
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