refactor: reduce generated brand assets from 4 to 3 and optimize prompt descriptions

Author: arolleaguekeng

api/services/BandIdentity/branding.service.ts

@@ -768,7 +768,7 @@ export class BrandingService extends GenericService {
     const startTime = Date.now();
 
     // Create 4 promises for parallel logo generation with token optimization
-    const logoPromises = Array.from({ length: 4 }, (_, index) =>
+    const logoPromises = Array.from({ length: 3 }, (_, index) =>
       this.generateSingleLogoConcept(
         projectDescription,
         selectedColors,

api/services/BandIdentity/prompts/singleGenerations/00_logo-generation-section.prompt.ts

@@ -4,7 +4,7 @@ Generate 1 premium, ORIGINAL tech logo concept with sophisticated design. Return
 {
   "id": "concept01",
   "name": "Creative Logo Name",
-  "concept": "Innovative design description",
+  "concept": "Brief, precise concept description (max 20 words)",
   "colors": ["#HEX1", "#HEX2", "#HEX3"],
   "fonts": ["Modern FontName"],
   "icon": {
@@ -28,6 +28,7 @@ Generate 1 premium, ORIGINAL tech logo concept with sophisticated design. Return
 }
 
 DESIGN EXCELLENCE REQUIREMENTS:
+- DESCRIPTIONS MUST BE ULTRA-CONCISE: 20-30 words maximum
 - CREATE UNIQUE, MEMORABLE DESIGNS - avoid basic circles/rectangles
 - Use sophisticated shapes: paths with curves, polygons, overlapping elements
 - Combine 2-4 shapes with different opacities (0.6-1.0) for depth

api/services/BandIdentity/prompts/singleGenerations/colors-generation.prompt.ts

@@ -1,5 +1,5 @@
 export const COLORS_GENERATION_PROMPT = `
-Generate 4 premium color palettes. Return JSON only:
+Generate 3 premium color palettes. Return JSON only:
 
 {
   "colors": [

api/services/BandIdentity/prompts/singleGenerations/colors-typography-generation.prompt.ts

@@ -1,5 +1,5 @@
 export const TYPOGRAPHY_GENERATION_PROMPT = `
-Generate 4 typography sets. Return JSON only:
+Generate 3 typography sets. Return JSON only:
 
 {
   "typography": [