docs(20): commit plan summaries 20-02 and 20-03

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

.planning/phases/20-knowledge-base-cliente/20-03-SUMMARY.md

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+---
+phase: 20-knowledge-base-cliente
+plan: "03"
+status: complete
+completed_at: "2026-06-20"
+---
+
+# Plan 20-03 Summary: UI Transcript Call
+
+## What Was Built
+
+UI completa per aggiungere, visualizzare ed eliminare i transcript delle call nel profilo lead.
+
+## Key Files
+
+### Created
+- `src/components/admin/leads/TranscriptModal.tsx` — modal form (call_date + title + content textarea min-h-48)
+
+### Modified
+- `src/components/admin/leads/LeadDetail.tsx` — prop `transcripts: ClientTranscript[]`, sezione "Transcript Call" con expand/collapse e Elimina, TranscriptModal nel header
+- `src/app/admin/leads/[id]/page.tsx` — `getTranscripts(id)` nel Promise.all, prop `transcripts` passato a LeadDetail
+
+## Self-Check: PASSED
+
+- ✓ `TranscriptModal.tsx` esiste con form call_date/title/content (min-h-48)
+- ✓ `LeadDetail.tsx` ha prop `transcripts: ClientTranscript[]`
+- ✓ Sezione "Transcript Call" appare dopo "Storico Attività"
+- ✓ Data formattata in italiano con `new Date(t.call_date + "T00:00:00")` (fix TZ shift)
+- ✓ Preview 3 righe/200 caratteri con toggle "Mostra tutto / Mostra meno"
+- ✓ Bottone "Elimina" via `deleteTranscript` server action
+- ✓ `border-l-4 border-purple-300` — stile distinto dal blu delle attività
+- ✓ `getTranscripts(id)` nel Promise.all di page.tsx
+- ✓ `npx tsc --noEmit` → no errors
+- ✓ `npm run build` → clean