fix(i18n): make columnLabels.scheduled + columnHelp.scheduled optional

[Ryan-Beahm]

Summary

web/src/i18n/en.ts declares scheduled keys under columnLabels and
columnHelp (lines 661 and 671), but the Translations interface in
web/src/i18n/types.ts doesn't include them. tsc -b && vite build
(which hermes dashboard invokes on launch) fails with TS2353:

src/i18n/en.ts(661,7): error TS2353: Object literal may only specify known
  properties, and 'scheduled' does not exist in type '{ triage: string; …
src/i18n/en.ts(671,7): error TS2353: …

hermes dashboard then exits before binding a port.

Fix

Mark the property optional (scheduled?: string) in both columnLabels
and columnHelp. This satisfies en.ts without forcing the 15 other
untranslated locale files to add it. Once translations land in the other
locale files, the ? can be removed at the maintainer's discretion.

Reproduce before

cd web && npm run build
# tsc emits TS2353 at en.ts:661 and en.ts:671 → build aborts

Verify after

cd web && npm run build       # ✓ built in ~5s (vite emits ../hermes_cli/web_dist/...)
hermes dashboard --port 8090  # binds → HTTP 200 at http://127.0.0.1:8090

Scope

• 2 lines added, 1 file (web/src/i18n/types.ts).
• No runtime behavior change for already-translated locales.
• Untranslated locales now render undefined for the scheduled column
  label/help (graceful — same as any unset i18n key) instead of failing
  the entire build.

[alt-glitch]

Duplicate of #28549 (merged 2026-05-19). That PR already added scheduled as a required field to columnLabels and columnHelp in types.ts. The diffs are byte-for-byte identical. See also #28534 (merged) which added the locale translations, and #28656 (closed) which took the same optional-field approach and was superseded.

[teknium1]

This has already been fixed on main. Thanks for the concise report and the small targeted patch.

Automated hermes-sweeper review evidence:

• fix(web): add scheduled column to i18n type definitions #28549 landed the same optional scheduled?: string additions in web/src/i18n/types.ts via commit 1335ce996d000def7a93e33853606de693c06f7d.
• Current main now has the stronger final shape: scheduled: string is present in web/src/i18n/types.ts for both columnLabels at line 778 and columnHelp at line 788.
• Current main also has the English scheduled strings in web/src/i18n/en.ts at lines 769 and 779, and a read-only scan of web/src/i18n/*.ts found no locale missing scheduled in those two sections.
• @alt-glitch's PR comment correctly points to the merged duplicate fix(web): add scheduled column to i18n type definitions #28549 and the follow-up locale work in fix(dashboard): add scheduled Kanban i18n strings #28534.

Closing as implemented on main.