Shows a warning banner and disables the Save button when a rule has
neither webhooks nor targets — would have been rejected at the server
edge (Task 3.3 validator), now caught earlier in the wizard with clear
reason.
Review step dumps a human summary plus raw request JSON, and (when a
setter is supplied) offers an Enabled-on-save Toggle. Promotion prefill
now returns {form, warnings}: clears agent IDs (per-env), flags missing
apps in target env, and flags webhook connections not allowed in target
env. 4 Vitest cases cover copy-name, agent clear, app-missing, and
webhook-not-allowed paths.
The wizard now consumes {form, warnings}; Task 25 renders the warnings
banner.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Wizard navigates 5 steps (scope/condition/trigger/notify/review) with
per-step validation. form-state module is the single source of truth for
the rule form; initialForm/toRequest/validateStep are unit-tested (6
tests). Step components are stubbed and will be implemented in Tasks
20-24. prefillFromPromotion is a thin wrapper in this commit; Task 24
rewrites it to compute scope-adjustment warnings.
Deviation notes:
- FormState.targets uses {kind, targetId} to match AlertRuleTarget DTO
field names (plan draft had targetKind).
- toRequest casts through Record<string, unknown> so the spread over
the Partial<AlertCondition> union typechecks.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>