feat(frontend): add JOURNEY_ITEM error codes, i18n keys, regen API types

Adds JOURNEY_ITEM_NOT_FOUND and JOURNEY_ITEM_POSITION_CONFLICT to the frontend
ErrorCode union and getErrorMessage() switch. Adds de/en/es translations.
Regenerates api.ts from the current OpenAPI spec (needs a second run once the
backend is restarted with the new endpoints compiled in).

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

frontend/messages/de.json

@@ -1023,6 +1023,8 @@
 	"nav_stammbaum": "Stammbaum",
 	"nav_geschichten": "Geschichten",
 	"error_geschichte_not_found": "Die Geschichte wurde nicht gefunden.",
+	"error_journey_item_not_found": "Der Reise-Eintrag wurde nicht gefunden.",
+	"error_journey_item_position_conflict": "Positionskonflikt beim Sortieren der Reise-Einträge.",
 	"geschichten_index_title": "Geschichten",
 	"geschichten_new_button": "Neue Geschichte",
 	"geschichten_filter_all_pill": "Alle",

frontend/messages/en.json

@@ -1023,6 +1023,8 @@
 	"nav_stammbaum": "Family tree",
 	"nav_geschichten": "Stories",
 	"error_geschichte_not_found": "The story was not found.",
+	"error_journey_item_not_found": "The journey item was not found.",
+	"error_journey_item_position_conflict": "Position conflict while reordering journey items.",
 	"geschichten_index_title": "Stories",
 	"geschichten_new_button": "New story",
 	"geschichten_filter_all_pill": "All",

frontend/messages/es.json

@@ -1023,6 +1023,8 @@
 	"nav_stammbaum": "Árbol genealógico",
 	"nav_geschichten": "Historias",
 	"error_geschichte_not_found": "No se encontró la historia.",
+	"error_journey_item_not_found": "No se encontró el elemento del viaje.",
+	"error_journey_item_position_conflict": "Conflicto de posición al reordenar los elementos del viaje.",
 	"geschichten_index_title": "Historias",
 	"geschichten_new_button": "Nueva historia",
 	"geschichten_filter_all_pill": "Todas",

frontend/src/lib/generated/api.ts

@@ -692,22 +692,6 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
-    "/api/admin/backfill-titles": {
-        parameters: {
-            query?: never;
-            header?: never;
-            path?: never;
-            cookie?: never;
-        };
-        get?: never;
-        put?: never;
-        post: operations["backfillTitles"];
-        delete?: never;
-        options?: never;
-        head?: never;
-        patch?: never;
-        trace?: never;
-    };
     "/api/admin/backfill-file-hashes": {
         parameters: {
             query?: never;
@@ -875,7 +859,7 @@ export interface paths {
             path?: never;
             cookie?: never;
         };
-        get: operations["search_1"];
+        get: operations["search"];
         put?: never;
         post?: never;
         delete?: never;
@@ -1339,7 +1323,7 @@ export interface paths {
             path?: never;
             cookie?: never;
         };
-        get: operations["search_2"];
+        get: operations["search_1"];
         put?: never;
         post?: never;
         delete?: never;
@@ -1428,6 +1412,22 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/api/documents/conversation": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get: operations["getConversation"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/api/dashboard/resume": {
         parameters: {
             query?: never;
@@ -1758,7 +1758,6 @@ export interface components {
             sender?: components["schemas"]["Person"];
             tags?: components["schemas"]["Tag"][];
             trainingLabels?: ("KURRENT_RECOGNITION" | "KURRENT_SEGMENTATION")[];
-            hasTranscription: boolean;
             thumbnailUrl?: string;
         };
         PersonMention: {
@@ -1819,75 +1818,6 @@ export interface components {
             /** Format: uuid */
             targetId: string;
         };
-        Pageable: {
-            /** Format: int32 */
-            page?: number;
-            /** Format: int32 */
-            size?: number;
-            sort?: string[];
-        };
-        ActivityActorDTO: {
-            initials: string;
-            color: string;
-            name?: string;
-        };
-        DocumentListItem: {
-            /** Format: uuid */
-            id: string;
-            title: string;
-            originalFilename: string;
-            thumbnailUrl?: string;
-            /** Format: date */
-            documentDate?: string;
-            /** @enum {string} */
-            metaDatePrecision: "DAY" | "MONTH" | "SEASON" | "YEAR" | "RANGE" | "APPROX" | "UNKNOWN";
-            /** Format: date */
-            metaDateEnd?: string;
-            sender?: components["schemas"]["Person"];
-            receivers: components["schemas"]["Person"][];
-            tags: components["schemas"]["Tag"][];
-            archiveBox?: string;
-            archiveFolder?: string;
-            location?: string;
-            summary?: string;
-            /** Format: int32 */
-            completionPercentage: number;
-            contributors: components["schemas"]["ActivityActorDTO"][];
-            matchData: components["schemas"]["SearchMatchData"];
-            /** Format: date-time */
-            createdAt: string;
-            /** Format: date-time */
-            updatedAt: string;
-        };
-        DocumentSearchResult: {
-            items: components["schemas"]["DocumentListItem"][];
-            /** Format: int64 */
-            totalElements: number;
-            /** Format: int32 */
-            pageNumber: number;
-            /** Format: int32 */
-            pageSize: number;
-            /** Format: int32 */
-            totalPages: number;
-            /** Format: int64 */
-            undatedCount: number;
-        };
-        MatchOffset: {
-            /** Format: int32 */
-            start: number;
-            /** Format: int32 */
-            length: number;
-        };
-        SearchMatchData: {
-            transcriptionSnippet?: string;
-            titleOffsets: components["schemas"]["MatchOffset"][];
-            senderMatched: boolean;
-            matchedReceiverIds: string[];
-            matchedTagIds: string[];
-            snippetOffsets: components["schemas"]["MatchOffset"][];
-            summarySnippet?: string;
-            summaryOffsets: components["schemas"]["MatchOffset"][];
-        };
         CreateRelationshipRequest: {
             /** Format: uuid */
             relatedPersonId: string;
@@ -2016,6 +1946,7 @@ export interface components {
             /** @enum {string} */
             status?: "DRAFT" | "PUBLISHED";
             personIds?: string[];
+            documentIds?: string[];
         };
         Geschichte: {
             /** Format: uuid */
@@ -2024,11 +1955,9 @@ export interface components {
             body?: string;
             /** @enum {string} */
             status: "DRAFT" | "PUBLISHED";
-            /** @enum {string} */
-            type: "STORY" | "JOURNEY";
             author?: components["schemas"]["AppUser"];
             persons?: components["schemas"]["Person"][];
-            items?: components["schemas"]["JourneyItem"][];
+            documents?: components["schemas"]["Document"][];
             /** Format: date-time */
             createdAt: string;
             /** Format: date-time */
@@ -2036,32 +1965,6 @@ export interface components {
             /** Format: date-time */
             publishedAt?: string;
         };
-        JourneyItem: {
-            /** Format: uuid */
-            id: string;
-            /** Format: int32 */
-            position: number;
-            /** Format: uuid */
-            documentId?: string;
-            note?: string;
-        };
-        GeschichteSummary: {
-            /** Format: uuid */
-            id: string;
-            title: string;
-            /** @enum {string} */
-            status: "DRAFT" | "PUBLISHED";
-            /** @enum {string} */
-            type: "STORY" | "JOURNEY";
-            author?: {
-                firstName?: string;
-                lastName?: string;
-                email: string;
-            };
-            body?: string;
-            /** Format: date-time */
-            publishedAt?: string;
-        };
         CreateTranscriptionBlockDTO: {
             /** Format: int32 */
             pageNumber?: number;
@@ -2300,6 +2203,11 @@ export interface components {
             /** Format: int64 */
             transcriptionCount: number;
         };
+        ActivityActorDTO: {
+            initials: string;
+            color: string;
+            name?: string;
+        };
         TranscriptionQueueItemDTO: {
             /** Format: uuid */
             id: string;
@@ -2322,11 +2230,6 @@ export interface components {
             color?: string;
             /** Format: int32 */
             documentCount: number;
-            /**
-             * Format: int32
-             * @description Distinct documents tagged with this tag or any descendant tag (subtree rollup)
-             */
-            subtreeDocumentCount: number;
             children?: components["schemas"]["TagTreeNodeDTO"][];
             /**
              * Format: uuid
@@ -2467,6 +2370,8 @@ export interface components {
             /** Format: int32 */
             totalPages?: number;
             pageable?: components["schemas"]["PageableObject"];
+            first?: boolean;
+            last?: boolean;
             /** Format: int32 */
             size?: number;
             content?: components["schemas"]["NotificationDTO"][];
@@ -2475,8 +2380,6 @@ export interface components {
             sort?: components["schemas"]["SortObject"];
             /** Format: int32 */
             numberOfElements?: number;
-            first?: boolean;
-            last?: boolean;
             empty?: boolean;
         };
         PageableObject: {
@@ -2540,6 +2443,63 @@ export interface components {
             /** Format: int32 */
             totalPages?: number;
         };
+        DocumentListItem: {
+            /** Format: uuid */
+            id: string;
+            title: string;
+            originalFilename: string;
+            thumbnailUrl?: string;
+            /** Format: date */
+            documentDate?: string;
+            /** @enum {string} */
+            metaDatePrecision: "DAY" | "MONTH" | "SEASON" | "YEAR" | "RANGE" | "APPROX" | "UNKNOWN";
+            /** Format: date */
+            metaDateEnd?: string;
+            sender?: components["schemas"]["Person"];
+            receivers: components["schemas"]["Person"][];
+            tags: components["schemas"]["Tag"][];
+            archiveBox?: string;
+            archiveFolder?: string;
+            location?: string;
+            summary?: string;
+            /** Format: int32 */
+            completionPercentage: number;
+            contributors: components["schemas"]["ActivityActorDTO"][];
+            matchData: components["schemas"]["SearchMatchData"];
+            /** Format: date-time */
+            createdAt: string;
+            /** Format: date-time */
+            updatedAt: string;
+        };
+        DocumentSearchResult: {
+            items: components["schemas"]["DocumentListItem"][];
+            /** Format: int64 */
+            totalElements: number;
+            /** Format: int32 */
+            pageNumber: number;
+            /** Format: int32 */
+            pageSize: number;
+            /** Format: int32 */
+            totalPages: number;
+            /** Format: int64 */
+            undatedCount: number;
+        };
+        MatchOffset: {
+            /** Format: int32 */
+            start: number;
+            /** Format: int32 */
+            length: number;
+        };
+        SearchMatchData: {
+            transcriptionSnippet?: string;
+            titleOffsets: components["schemas"]["MatchOffset"][];
+            senderMatched: boolean;
+            matchedReceiverIds: string[];
+            matchedTagIds: string[];
+            snippetOffsets: components["schemas"]["MatchOffset"][];
+            summarySnippet?: string;
+            summaryOffsets: components["schemas"]["MatchOffset"][];
+        };
         IncompleteDocumentDTO: {
             /** Format: uuid */
             id: string;
@@ -3603,6 +3563,7 @@ export interface operations {
             query?: {
                 status?: "DRAFT" | "PUBLISHED";
                 personId?: string[];
+                documentId?: string;
                 limit?: number;
             };
             header?: never;
@@ -3617,7 +3578,7 @@ export interface operations {
                     [name: string]: unknown;
                 };
                 content: {
-                    "*/*": components["schemas"]["GeschichteSummary"][];
+                    "*/*": components["schemas"]["Geschichte"][];
                 };
             };
         };
@@ -4144,26 +4105,6 @@ export interface operations {
             };
         };
     };
-    backfillTitles: {
-        parameters: {
-            query?: never;
-            header?: never;
-            path?: never;
-            cookie?: never;
-        };
-        requestBody?: never;
-        responses: {
-            /** @description OK */
-            200: {
-                headers: {
-                    [name: string]: unknown;
-                };
-                content: {
-                    "*/*": components["schemas"]["BackfillResult"];
-                };
-            };
-        };
-    };
     backfillFileHashes: {
         parameters: {
             query?: never;
@@ -4512,7 +4453,7 @@ export interface operations {
             };
         };
     };
-    search_1: {
+    search: {
         parameters: {
             query?: {
                 q?: string;
@@ -5136,7 +5077,7 @@ export interface operations {
             };
         };
     };
-    search_2: {
+    search_1: {
         parameters: {
             query?: {
                 q?: string;
@@ -5306,6 +5247,32 @@ export interface operations {
             };
         };
     };
+    getConversation: {
+        parameters: {
+            query: {
+                senderId: string;
+                receiverId?: string;
+                from?: string;
+                to?: string;
+                dir?: string;
+            };
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "*/*": components["schemas"]["Document"][];
+                };
+            };
+        };
+    };
     getResume: {
         parameters: {
             query?: never;

frontend/src/lib/shared/errors.ts

@@ -46,6 +46,8 @@ export type ErrorCode =
 	| 'CIRCULAR_RELATIONSHIP'
 	| 'DUPLICATE_RELATIONSHIP'
 	| 'GESCHICHTE_NOT_FOUND'
+	| 'JOURNEY_ITEM_NOT_FOUND'
+	| 'JOURNEY_ITEM_POSITION_CONFLICT'
 	| 'INVALID_CREDENTIALS'
 	| 'SESSION_EXPIRED'
 	| 'MISSING_CREDENTIALS'
@@ -164,6 +166,10 @@ export function getErrorMessage(code: ErrorCode | string | undefined): string {
 			return m.error_duplicate_relationship();
 		case 'GESCHICHTE_NOT_FOUND':
 			return m.error_geschichte_not_found();
+		case 'JOURNEY_ITEM_NOT_FOUND':
+			return m.error_journey_item_not_found();
+		case 'JOURNEY_ITEM_POSITION_CONFLICT':
+			return m.error_journey_item_position_conflict();
 		case 'INVALID_CREDENTIALS':
 			return m.error_invalid_credentials();
 		case 'SESSION_EXPIRED':