fix(#240): remove CTA buttons and dead i18n keys from Mission Control Strip

The enrich page already handles task routing; the buttons in the
segmentation and transcription columns were redundant. Removes the
unused mission_control_segmentation_cta, mission_control_transcription_cta,
and mission_control_ready_all_cta keys from all three locale files.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/messages/de.json

@@ -560,17 +560,14 @@
 	"mission_control_segmentation_heading": "Rahmen einzeichnen",
 	"mission_control_segmentation_description": "Textbereiche markieren — keine Vorkenntnisse nötig",
 	"mission_control_seg_skill_pill": "✓ Ohne Vorkenntnisse",
-	"mission_control_segmentation_cta": "Jetzt einzeichnen →",
 	"mission_control_segmentation_empty": "Alle Dokumente haben bereits Segmentierungsblöcke.",
 	"mission_control_transcription_heading": "Text eintippen",
 	"mission_control_transcription_description": "Text abschreiben — Kurrent-Kenntnisse hilfreich",
 	"mission_control_trans_skill_pill": "Kurrent hilfreich",
-	"mission_control_transcription_cta": "Jetzt tippen →",
 	"mission_control_transcription_empty": "Keine Dokumente warten auf Transkription.",
 	"mission_control_ready_heading": "Lesefertig ✓",
 	"mission_control_ready_description": "Vollständig transkribiert und geprüft",
 	"mission_control_ready_subtitle": "{count} Dokumente bereit",
-	"mission_control_ready_all_cta": "Alle {count} lesen →",
 	"mission_control_ready_empty": "Noch keine Dokumente vollständig transkribiert.",
 	"mission_control_ready_empty_cta": "Jetzt mitmachen",
 	"mission_control_weekly_pulse": "↑ +{count} diese Woche",

frontend/messages/en.json

@@ -560,17 +560,14 @@
 	"mission_control_segmentation_heading": "Draw regions",
 	"mission_control_segmentation_description": "Mark text areas — no prior knowledge needed",
 	"mission_control_seg_skill_pill": "✓ No prior knowledge",
-	"mission_control_segmentation_cta": "Start marking →",
 	"mission_control_segmentation_empty": "All documents already have segmentation blocks.",
 	"mission_control_transcription_heading": "Type the text",
 	"mission_control_transcription_description": "Type out text — Kurrent knowledge helpful",
 	"mission_control_trans_skill_pill": "Kurrent helpful",
-	"mission_control_transcription_cta": "Start typing →",
 	"mission_control_transcription_empty": "No documents waiting for transcription.",
 	"mission_control_ready_heading": "Ready to read ✓",
 	"mission_control_ready_description": "Fully transcribed and reviewed",
 	"mission_control_ready_subtitle": "{count} documents ready",
-	"mission_control_ready_all_cta": "Read all {count} →",
 	"mission_control_ready_empty": "No documents fully transcribed yet.",
 	"mission_control_ready_empty_cta": "Start contributing",
 	"mission_control_weekly_pulse": "↑ +{count} this week",

frontend/messages/es.json

@@ -560,17 +560,14 @@
 	"mission_control_segmentation_heading": "Marcar regiones",
 	"mission_control_segmentation_description": "Marcar áreas de texto — sin conocimientos previos",
 	"mission_control_seg_skill_pill": "✓ Sin conocimientos previos",
-	"mission_control_segmentation_cta": "Empezar a marcar →",
 	"mission_control_segmentation_empty": "Todos los documentos ya tienen bloques de segmentación.",
 	"mission_control_transcription_heading": "Escribir el texto",
 	"mission_control_transcription_description": "Escribir el texto — conocimiento de Kurrent útil",
 	"mission_control_trans_skill_pill": "Kurrent útil",
-	"mission_control_transcription_cta": "Empezar a escribir →",
 	"mission_control_transcription_empty": "No hay documentos esperando transcripción.",
 	"mission_control_ready_heading": "Listo para leer ✓",
 	"mission_control_ready_description": "Completamente transcrito y revisado",
 	"mission_control_ready_subtitle": "{count} documentos listos",
-	"mission_control_ready_all_cta": "Leer todos ({count}) →",
 	"mission_control_ready_empty": "Aún no hay documentos completamente transcritos.",
 	"mission_control_ready_empty_cta": "Empezar a colaborar",
 	"mission_control_weekly_pulse": "↑ +{count} esta semana",

frontend/src/lib/components/SegmentationColumn.svelte

@@ -66,11 +66,5 @@ function formatDate(dateStr: string): string {
 				</li>
 			{/each}
 		</ul>
-		<a
-			href="/enrich?filter=NEEDS_SEGMENTATION&next=1"
-			class="mt-auto block w-full rounded-sm bg-primary py-2 text-center text-xs font-semibold text-primary-fg transition-colors hover:bg-primary/90 focus-visible:ring-2 focus-visible:ring-focus-ring focus-visible:ring-offset-1 focus-visible:outline-none"
-		>
-			{m.mission_control_segmentation_cta()}
-		</a>
 	</div>
 {/if}

frontend/src/lib/components/TranscriptionColumn.svelte

@@ -89,11 +89,5 @@ function blockProgress(doc: TranscriptionQueueItemDTO): number {
 				</li>
 			{/each}
 		</ul>
-		<a
-			href="/enrich?filter=NEEDS_TRANSCRIPTION&next=1"
-			class="mt-auto block w-full rounded-sm bg-primary py-2 text-center text-xs font-semibold text-primary-fg transition-colors hover:bg-primary/90 focus-visible:ring-2 focus-visible:ring-focus-ring focus-visible:ring-offset-1 focus-visible:outline-none"
-		>
-			{m.mission_control_transcription_cta()}
-		</a>
 	</div>
 {/if}