refactor: unify custom_prompt and remove Anweisungen frontend plumbing

apps/api/agents/langgraph/PromptProcessor.ts

@@ -4,29 +4,28 @@
  */
 
 import fs from 'fs';
+import path, { dirname } from 'path';
 import { fileURLToPath } from 'url';
-import { dirname } from 'path';
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 
-import path from 'path';
-
 // Import required utilities
-import { enrichRequest } from '../../utils/requestEnrichment.js';
-import { assemblePromptGraphAsync } from './promptAssemblyGraph.js';
-import { sendSuccessResponseWithAttachments } from '../../utils/request/index.js';
+import {
+  localizePromptObject,
+  extractLocaleFromRequest,
+} from '../../services/localization/index.js';
 import { withErrorHandler, handleValidationError } from '../../utils/errors/index.js';
-import { processAutomatischPR } from './PRAgent/index.js';
 import {
   MARKDOWN_FORMATTING_INSTRUCTIONS,
   HTML_FORMATTING_INSTRUCTIONS,
   TITLE_GENERATION_INSTRUCTION,
   PLATFORM_SPECIFIC_GUIDELINES,
 } from '../../utils/prompt/index.js';
-import {
-  localizePromptObject,
-  extractLocaleFromRequest,
-} from '../../services/localization/index.js';
+import { sendSuccessResponseWithAttachments } from '../../utils/request/index.js';
+import { enrichRequest } from '../../utils/requestEnrichment.js';
+
+import { processAutomatischPR } from './PRAgent/index.js';
+import { assemblePromptGraphAsync } from './promptAssemblyGraph.js';
 
 // Import types
 import type {
@@ -261,32 +260,28 @@ function validateRequest(requestBody: any, config: PromptConfig): string | null
  * @returns Modified request data
  */
 async function applyProfileDefaults(requestData: any, req: any, type: string): Promise<any> {
-  if (
-    type === 'social' &&
-    requestData.platforms?.includes('pressemitteilung') &&
-    !requestData.zitatgeber
-  ) {
-    if (req?.user?.id) {
-      try {
-        const { getProfileService } = await import('../../services/user/index.js');
-        const profileService = getProfileService();
-        const profile = await profileService.getProfileById(req.user.id);
-
-        if (profile?.display_name) {
-          requestData.zitatgeber = profile.display_name;
-          console.log(
-            '[promptProcessor] Applied default zitatgeber from profile:',
-            profile.display_name
-          );
-        }
-      } catch (error) {
-        const errorMessage = error instanceof Error ? error.message : String(error);
-        console.warn(
-          '[promptProcessor] Could not fetch profile for default zitatgeber:',
-          errorMessage
-        );
-      }
+  if (!req?.user?.id) return requestData;
+  try {
+    const { getProfileService } = await import('../../services/user/index.js');
+    const profileService = getProfileService();
+    const profile = await profileService.getProfileById(req.user.id);
+    if (!profile) return requestData;
+
+    if ((profile as any).custom_prompt?.trim()) {
+      requestData.customPrompt = (profile as any).custom_prompt;
+    }
+
+    if (
+      type === 'social' &&
+      requestData.platforms?.includes('pressemitteilung') &&
+      !requestData.zitatgeber &&
+      profile.display_name
+    ) {
+      requestData.zitatgeber = profile.display_name;
     }
+  } catch (error) {
+    const msg = error instanceof Error ? error.message : String(error);
+    console.warn('[promptProcessor] Could not fetch profile defaults:', msg);
   }
   return requestData;
 }
@@ -662,9 +657,14 @@ export async function processGraphRequest(routeType: string, req: any, res: any)
       return handleValidationError(res, `/${routeType}`, validationError);
     }
 
-    // Apply profile defaults for optional fields (e.g., zitatgeber from display_name)
+    // Apply profile defaults for optional fields (e.g., customPrompt fallback, zitatgeber)
     await applyProfileDefaults(requestData, req, routeType);
 
+    // Re-extract instructions after profile defaults may have set customPrompt
+    if (!extractedInstructions && requestData.customPrompt) {
+      extractedInstructions = requestData.customPrompt;
+    }
+
     // Handle custom_generator special case
     let generatorData: any = null;
     if (config.features?.customPromptFromDb) {

apps/api/database/postgres/local_setup.sql

@@ -12,8 +12,6 @@ CREATE TABLE IF NOT EXISTS profiles (
     last_name TEXT,
     display_name TEXT,
     avatar_url TEXT,
-    custom_antrag_prompt TEXT,
-    custom_social_prompt TEXT,
     deutschlandmodus BOOLEAN DEFAULT FALSE,
     is_admin BOOLEAN DEFAULT FALSE,
     profile_image INTEGER DEFAULT 1,
@@ -22,8 +20,7 @@ CREATE TABLE IF NOT EXISTS profiles (
     username TEXT,
     last_login TIMESTAMPTZ,
     email TEXT,
-    custom_universal_prompt TEXT,
-    custom_gruenejugend_prompt TEXT,
+    custom_prompt TEXT,
     igel_modus BOOLEAN DEFAULT FALSE,
     beta_features JSONB DEFAULT '{}',
     presseabbinder TEXT,

apps/api/database/postgres/migrations/migrate_anweisungen_to_custom_prompt.sql

@@ -0,0 +1,58 @@
+-- ════════════════════════════════════════════════════════════════════════════
+-- Migration: Merge per-generator Anweisungen into unified custom_prompt
+-- ════════════════════════════════════════════════════════════════════════════
+--
+-- Context: The app previously had 6 separate prompt columns for different
+-- generator types. These were replaced by a single `custom_prompt` column.
+-- This migration merges any existing data from the old columns into
+-- `custom_prompt` (if it is currently empty), then drops the old columns.
+--
+-- Safe to run multiple times: the DROP COLUMN uses IF EXISTS.
+-- ════════════════════════════════════════════════════════════════════════════
+
+BEGIN;
+
+-- Step 1: Merge old per-type prompts into custom_prompt where it is empty
+UPDATE profiles
+SET custom_prompt = CONCAT_WS(
+    E'\n\n',
+    CASE WHEN NULLIF(TRIM(custom_antrag_prompt), '') IS NOT NULL
+         THEN '## Anträge' || E'\n' || TRIM(custom_antrag_prompt) END,
+    CASE WHEN NULLIF(TRIM(custom_social_prompt), '') IS NOT NULL
+         THEN '## Social Media' || E'\n' || TRIM(custom_social_prompt) END,
+    CASE WHEN NULLIF(TRIM(custom_rede_prompt), '') IS NOT NULL
+         THEN '## Reden' || E'\n' || TRIM(custom_rede_prompt) END,
+    CASE WHEN NULLIF(TRIM(custom_universal_prompt), '') IS NOT NULL
+         THEN '## Universell' || E'\n' || TRIM(custom_universal_prompt) END,
+    CASE WHEN NULLIF(TRIM(custom_gruenejugend_prompt), '') IS NOT NULL
+         THEN '## Grüne Jugend' || E'\n' || TRIM(custom_gruenejugend_prompt) END,
+    CASE WHEN NULLIF(TRIM(custom_buergeranfragen_prompt), '') IS NOT NULL
+         THEN '## Bürgeranfragen' || E'\n' || TRIM(custom_buergeranfragen_prompt) END
+)
+WHERE NULLIF(TRIM(COALESCE(custom_prompt, '')), '') IS NULL
+  AND (
+    NULLIF(TRIM(COALESCE(custom_antrag_prompt, '')), '') IS NOT NULL
+    OR NULLIF(TRIM(COALESCE(custom_social_prompt, '')), '') IS NOT NULL
+    OR NULLIF(TRIM(COALESCE(custom_rede_prompt, '')), '') IS NOT NULL
+    OR NULLIF(TRIM(COALESCE(custom_universal_prompt, '')), '') IS NOT NULL
+    OR NULLIF(TRIM(COALESCE(custom_gruenejugend_prompt, '')), '') IS NOT NULL
+    OR NULLIF(TRIM(COALESCE(custom_buergeranfragen_prompt, '')), '') IS NOT NULL
+  );
+
+-- Step 2: Drop the old per-type prompt columns
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_antrag_prompt;
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_social_prompt;
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_universal_prompt;
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_gruenejugend_prompt;
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_rede_prompt;
+ALTER TABLE profiles DROP COLUMN IF EXISTS custom_buergeranfragen_prompt;
+
+COMMIT;
+
+-- Step 3: Verification query (run after migration)
+-- Shows profiles whose custom_prompt was populated by the migration
+SELECT id, display_name, LEFT(custom_prompt, 80) AS custom_prompt_preview
+FROM profiles
+WHERE custom_prompt IS NOT NULL AND custom_prompt != ''
+ORDER BY updated_at DESC
+LIMIT 20;

apps/api/database/postgres/schema.sql

@@ -48,8 +48,6 @@ CREATE TABLE IF NOT EXISTS profiles (
     last_name TEXT,
     display_name TEXT,
     avatar_url TEXT,
-    custom_antrag_prompt TEXT,
-    custom_social_prompt TEXT,
     deutschlandmodus BOOLEAN DEFAULT FALSE,
     is_admin BOOLEAN DEFAULT FALSE,
     profile_image INTEGER DEFAULT 1,
@@ -58,10 +56,6 @@ CREATE TABLE IF NOT EXISTS profiles (
     username TEXT,
     last_login TIMESTAMPTZ,
     email TEXT,
-    custom_universal_prompt TEXT,
-    custom_gruenejugend_prompt TEXT,
-    custom_rede_prompt TEXT,
-    custom_buergeranfragen_prompt TEXT,
     custom_prompt TEXT,
     igel_modus BOOLEAN DEFAULT FALSE,
     beta_features JSONB DEFAULT '{}',