Regenerate presentations with 3-5 item constraint

- lesson-7: Condensed takeaways from 6 to 5 items
- lesson-9: Condensed takeaways from 6 to 5 items
- Update manifest timestamps and metadata

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: ofriw

website/static/presentations/manifest.json

@@ -43,10 +43,10 @@
   },
   "practical-techniques/lesson-7-planning-execution.md": {
     "presentationUrl": "/presentations/practical-techniques/lesson-7-planning-execution.json",
-    "slideCount": 12,
-    "estimatedDuration": "45-60 minutes",
-    "title": "Planning & Execution: Grounding Agents in Your Codebase",
-    "generatedAt": "2025-11-09T06:38:15.228Z"
+    "slideCount": 15,
+    "estimatedDuration": "45-50 minutes",
+    "title": "Lesson 7: Planning & Execution",
+    "generatedAt": "2025-11-10T16:44:27.800Z"
   },
   "practical-techniques/lesson-8-tests-as-guardrails.md": {
     "presentationUrl": "/presentations/practical-techniques/lesson-8-tests-as-guardrails.json",
@@ -60,7 +60,7 @@
     "slideCount": 12,
     "estimatedDuration": "35-45 minutes",
     "title": "Lesson 9: Reviewing Code",
-    "generatedAt": "2025-11-10T12:26:26.417Z"
+    "generatedAt": "2025-11-10T16:45:53.163Z"
   },
   "understanding-the-tools/lesson-1-intro.md": {
     "presentationUrl": "/presentations/understanding-the-tools/lesson-1-intro.json",