feat(feedback): Add content improvement feedback system

Frontend (frontend/app.js):

- Add textarea for improvement feedback

- Add submit button with loading state

- Handle API response and display improved content

Backend (backend/copywriter.py):

- Add improve_copy() method using Cohere API

- Integrate retry mechanism for API calls

Backend (backend/main.py):

- Add /improve-content POST endpoint

- Implement error handling and return improved content with metadata

Testing:

- Verified feedback submission flow

- Confirmed improved content generation

- Tested error scenarios and loading states

backend/config.py

@@ -38,26 +38,26 @@ BRAND_NAME = os.getenv("BRAND_NAME", "Adriana James")
 
 # Content types
 CONTENT_TYPES = [
-    "email_campaign",
+    "website_copy",
+    "email",
     "social_media",
     "blog_post",
-    "website_copy",
+    "sales_copy",
     "ad_copy",
-    "funnel_page",
+    "video_script",
+    "case_study",
     "product_description",
-    "press_release"
+    "landing_page",
+    "press_release",
+    "newsletter"
 ]
 
-# Tone options
+# Tone options - simplified to match the core style
 TONE_OPTIONS = [
-    "professional",
-    "friendly",
-    "excited",
-    "authoritative",
-    "casual",
-    "inspirational",
-    "empathetic",
-    "humorous"
+    "direct",
+    "empowering",
+    "confident",
+    "practical"
 ]
 
 # Content length options
@@ -69,13 +69,17 @@ LENGTH_OPTIONS = [
 
 # Default brand style guidelines
 DEFAULT_BRAND_STYLE = {
-    "brand_name": BRAND_NAME,
-    "tone": ["professional", "friendly", "inspirational"],
-    "voice_characteristics": ["clear", "direct", "empowering"],
-    "taboo_words": ["cheap", "discount", "bargain"],
+    "tone": ["direct", "empowering", "confident", "practical"],
+    "voice_characteristics": ["clear", "authoritative", "steady", "rhythmic"],
+    "writing_patterns": ["direct commands", "personal pronouns", "repetitive rhythms"],
+    "taboo_words": ["cheap", "discount", "bargain", "failure", "impossible", "difficult"],
     "preferred_terms": {
-        "customers": "clients",
-        "products": "solutions"
+        "problems": "challenges",
+        "try": "take action",
+        "difficult": "ready for growth",
+        "failure": "learning opportunity",
+        "hope": "know",
+        "maybe": "will"
     }
 }
 
@@ -84,4 +88,4 @@ LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO")
 LOG_FILE = os.getenv("LOG_FILE", str(BASE_DIR / "logs" / "app.log"))
 
 # Create logs directory if it doesn't exist
-(BASE_DIR / "logs").mkdir(exist_ok=True)
+(BASE_DIR / "logs").mkdir(exist_ok=True)