refactor: migrate the 3 wizards to the effect map and Primary (RD-08)

The three wizards paired a dispatch with a hand-written effect call
(onPrimary/onRetry + runIfSubmitting/runIfIndienen). A missed call failed
silently. RD-05 added the effect map and RD-07 added the Primary message;
this ticket moves each wizard onto both.

Each wizard now registers its submit effect on createStore, keyed by its
own submitting tag (Submitting for herregistratie and intake, Indienen for
registratie — the type catches a wrong key at compile time). The optimistic
begin/confirm/rollback calls stay inside the effect body, unchanged. The
template dispatches Primary and Retry directly, matching how Back already
worked. onPrimary, onRetry, and runIfSubmitting/runIfIndienen are deleted
from all three components.

herregistratie-wizard drops under the 250-rule-line budget, so its
eslint-disable max-lines header is removed in this same commit (RD-02's
self-cleaning mechanism). intake-wizard and registratie-wizard stay over
budget and keep theirs, both already flagged for RD-22/RD-23.

Three doc comments (in the three machine files, plus one in store.ts) named
the deleted onPrimary()/runIfSubmitting() identifiers in prose. Reworded
them so the "idiom is gone from the repo" grep check is not defeated by its
own explanatory comments.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/ssp/src/app/herregistratie/domain/herregistratie.machine.ts

@@ -122,7 +122,7 @@ export function submit(s: WizardState): WizardState {
 }
 
 /** The primary button's action: advance, or submit from the last step. No-op
-    outside Editing — this is the one decision `onPrimary()` used to make. */
+    outside Editing — this is the one decision the old component-side handler used to make. */
 export function primary(s: WizardState): WizardState {
   if (s.tag !== 'Editing') return s;
   return s.step === 3 ? submit(s) : next(s);

apps/ssp/src/app/herregistratie/domain/intake.machine.ts

@@ -201,7 +201,7 @@ export function submit(s: IntakeState): IntakeState {
 }
 
 /** The primary button's action: advance, or submit from the review step. No-op
-    outside Answering — this is the one decision `onPrimary()` used to make. */
+    outside Answering — this is the one decision the old component-side handler used to make. */
 export function primary(s: IntakeState): IntakeState {
   if (s.tag !== 'Answering') return s;
   return currentStep(s) === 'review' ? submit(s) : next(s);