* fix(jira): use shared prompt template with placeholder autocomplete
Default prompt for the JIRA watcher now lives in
config/prompts/jira-issue-watch-default.md (loaded via promptcfg.Get),
matching how the GitHub issue/PR-review watchers source their defaults.
The watch dialog swaps the plain Textarea for the ScriptEditor used by
the GitHub dialog so users get {{...}} autocomplete, and the inline
hardcoded default string is gone from both backend and frontend.
* fix(jira): treat whitespace-only stored prompt as empty on hydrate
CodeRabbit caught that w.prompt || DEFAULT keeps a stored " " value,
which canSave then rejects — dialog reopens in an unsavable state. Fall
back to the default whenever the trimmed value is empty.
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Co-authored-by: Kandev Agent <agent@kandev.dev>
João Salavisa
a59909ca5a