fix: hide framework labels in generated content + editable hashtags

- Add explicit instruction to LLM: never write framework labels (PROBLEMA,
  AGITAZIONE, SOLUZIONE, etc.) — use them as invisible narrative structure only
- Replace static hashtag chips with HashtagEditor component:
  - Click hashtag to edit inline
  - Click X to remove
  - Input field to add new hashtags
  - Save button to persist changes to DB

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/app/services/content.py

@@ -41,7 +41,12 @@ def generate_post_text(
         f"Your expertise covers: {topics_str}. "
         f"Your communication style is {tone}. "
         f"You create authentic, engaging content that resonates with your audience. "
-        f"Never reveal you are an AI. Write as {name} would naturally write."
+        f"Never reveal you are an AI. Write as {name} would naturally write.\n\n"
+        f"REGOLA CRITICA: Se ti viene indicata una tecnica narrativa (PAS, AIDA, Storytelling, ecc.), "
+        f"usala SOLO come struttura invisibile del testo. "
+        f"NON scrivere MAI le etichette del framework nel post (es. non scrivere 'PROBLEMA:', "
+        f"'AGITAZIONE:', 'SOLUZIONE:', 'ATTENZIONE:', 'INTERESSE:', ecc.). "
+        f"Il lettore non deve percepire alcun framework — deve sembrare un post naturale e spontaneo."
     )
 
     # Platform-specific instructions

frontend/src/components/ContentPage.jsx

@@ -346,16 +346,11 @@ export default function ContentPage() {
               )}
 
               {generated.hashtags?.length > 0 && (
-                <div style={{ marginBottom: '1rem' }}>
-                  <span style={{ ...labelStyle, display: 'block', marginBottom: '0.4rem' }}>Hashtag</span>
-                  <div style={{ display: 'flex', flexWrap: 'wrap', gap: '0.35rem' }}>
-                    {generated.hashtags.map((tag, i) => (
-                      <span key={i} style={{ fontSize: '0.78rem', padding: '0.15rem 0.5rem', backgroundColor: 'var(--accent-light)', color: 'var(--accent)' }}>
-                        {tag}
-                      </span>
-                    ))}
-                  </div>
-                </div>
+                <HashtagEditor
+                  hashtags={generated.hashtags}
+                  onChange={newTags => setGenerated(prev => ({ ...prev, hashtags: newTags }))}
+                  postId={generated.id}
+                />
               )}
 
               <div style={{ display: 'flex', gap: '0.5rem', paddingTop: '1rem', borderTop: '1px solid var(--border)', flexWrap: 'wrap' }}>
@@ -382,6 +377,84 @@ export default function ContentPage() {
   )
 }
 
+function HashtagEditor({ hashtags, onChange, postId }) {
+  const [newTag, setNewTag] = useState('')
+  const [editIdx, setEditIdx] = useState(null)
+  const [editValue, setEditValue] = useState('')
+  const [saving, setSaving] = useState(false)
+
+  const removeTag = (idx) => {
+    const updated = hashtags.filter((_, i) => i !== idx)
+    onChange(updated)
+  }
+
+  const addTag = () => {
+    let tag = newTag.trim()
+    if (!tag) return
+    if (!tag.startsWith('#')) tag = `#${tag}`
+    if (!hashtags.includes(tag)) {
+      onChange([...hashtags, tag])
+    }
+    setNewTag('')
+  }
+
+  const startEdit = (idx) => {
+    setEditIdx(idx)
+    setEditValue(hashtags[idx])
+  }
+
+  const confirmEdit = () => {
+    if (editIdx === null) return
+    let tag = editValue.trim()
+    if (!tag) { removeTag(editIdx); setEditIdx(null); return }
+    if (!tag.startsWith('#')) tag = `#${tag}`
+    const updated = [...hashtags]
+    updated[editIdx] = tag
+    onChange(updated)
+    setEditIdx(null)
+  }
+
+  const saveHashtags = async () => {
+    setSaving(true)
+    try {
+      await api.put(`/content/posts/${postId}`, { hashtags })
+    } catch (e) { /* silent */ }
+    setSaving(false)
+  }
+
+  return (
+    <div style={{ marginBottom: '1rem' }}>
+      <span style={{ ...labelStyle, display: 'block', marginBottom: '0.4rem' }}>Hashtag</span>
+      <div style={{ display: 'flex', flexWrap: 'wrap', gap: '0.35rem', marginBottom: '0.5rem' }}>
+        {hashtags.map((tag, i) => (
+          editIdx === i ? (
+            <input key={i} type="text" value={editValue} onChange={e => setEditValue(e.target.value)}
+              onBlur={confirmEdit} onKeyDown={e => { if (e.key === 'Enter') confirmEdit(); if (e.key === 'Escape') setEditIdx(null) }}
+              autoFocus style={{ fontSize: '0.78rem', padding: '0.15rem 0.5rem', border: '1px solid var(--accent)', outline: 'none', fontFamily: "'DM Sans', sans-serif", width: Math.max(60, editValue.length * 8) }} />
+          ) : (
+            <span key={i} style={{ fontSize: '0.78rem', padding: '0.15rem 0.5rem', backgroundColor: 'var(--accent-light)', color: 'var(--accent)', cursor: 'pointer', display: 'inline-flex', alignItems: 'center', gap: '0.3rem' }}
+              onClick={() => startEdit(i)}>
+              {tag}
+              <span onClick={e => { e.stopPropagation(); removeTag(i) }} style={{ fontSize: '0.65rem', cursor: 'pointer', opacity: 0.7, lineHeight: 1 }} title="Rimuovi">✕</span>
+            </span>
+          )
+        ))}
+      </div>
+      <div style={{ display: 'flex', gap: '0.35rem', alignItems: 'center' }}>
+        <input type="text" value={newTag} onChange={e => setNewTag(e.target.value)}
+          onKeyDown={e => { if (e.key === 'Enter') { e.preventDefault(); addTag() } }}
+          placeholder="Aggiungi hashtag…" style={{ fontSize: '0.8rem', padding: '0.3rem 0.6rem', border: '1px solid var(--border)', outline: 'none', fontFamily: "'DM Sans', sans-serif", flex: 1 }}
+          onFocus={e => e.target.style.borderColor = 'var(--ink)'} onBlur={e => e.target.style.borderColor = 'var(--border)'} />
+        <button type="button" onClick={addTag} style={{ fontSize: '0.78rem', padding: '0.3rem 0.6rem', backgroundColor: 'var(--cream-dark)', border: 'none', cursor: 'pointer', color: 'var(--ink-light)' }}>+</button>
+      </div>
+      <button type="button" onClick={saveHashtags} disabled={saving}
+        style={{ fontSize: '0.72rem', marginTop: '0.35rem', padding: '0.2rem 0.5rem', backgroundColor: 'transparent', border: '1px solid var(--border)', cursor: 'pointer', color: 'var(--ink-muted)' }}>
+        {saving ? 'Salvataggio…' : 'Salva hashtag'}
+      </button>
+    </div>
+  )
+}
+
 const labelStyle = {
   fontSize: '0.72rem', fontWeight: 700, letterSpacing: '0.1em',
   textTransform: 'uppercase', color: 'var(--ink)',