#5622: fix(onboard): parse space-separated channel allowlist entries

## Summary Fixes #5617 The channel allowlist prompt during `openclaw onboard` says "comma-separated" but users often enter space-separated values like `#ryan #openclaw-discussion`. Previously this was saved as a single config key, causing channel matching to fail silently. **Before:** `"#ryan #openclaw-discussion": { "allow": true }` (one broken key) **After:** `"#ryan": { "allow": true }, "#openclaw-discussion": { "allow": true }` (two correct keys) ## Changes - Updated `parseAllowlistEntries()` to split on comma, semicolon, space, or newline - Added comprehensive test coverage for the parsing function ## Test plan - [x] All 14 new tests pass - [x] Verified fix handles: comma-separated, space-separated, semicolon-separated, newline-separated, and mixed inputs - [x] Edge cases covered: empty input, single entry, extra whitespace 🦞 Generated with [Claude Code](https://claude.ai/claude-code) <!-- greptile_comment --> <h2>Greptile Overview</h2> <h3>Greptile Summary</h3> This PR fixes `openclaw onboard` allowlist parsing so users can enter channels separated by spaces (and other common separators) instead of only commas/newlines. The core change updates `parseAllowlistEntries()` to split on commas, semicolons, and whitespace, and adds a new `channel-access.test.ts` suite with a range of parsing/formatting cases. This fits into the onboarding plugin by ensuring `promptChannelAllowlist()` produces a normalized `string[]` even when user input doesn’t match the prompt’s stated “comma-separated” format, preventing silent allowlist mismatches in downstream channel matching logic. <h3>Confidence Score: 4/5</h3> - This PR is likely safe to merge and should fix the reported onboarding allowlist parsing issue. - Change is localized to a small helper function and adds targeted unit tests. The main risk is subtle over-splitting due to using `\s` (broader than space/newline) and the tests using type casts for null/undefined despite the function being typed as `string`. - src/channels/plugins/onboarding/channel-access.ts <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->