Add demo presentation + 14 deliverables for PharmaCorp Mexico scenario

- gen_demo_deck.py: Generates 11-slide demo presentation using Oracle FY26
  template. LLM-agnostic messaging (works on Claude, Codex, GPT, Gemini).
  Before/After comparison, 14 live prompts in table format.
- examples/output-demo-pharma-mx/: Complete deliverable set for a pharma
  migration scenario (ExaCS X6 → OCI ExaCS X11M, dual-region DR, SOX).
  One file per skill option (1-14): pptx, drawio, pdf, xlsx, json, yaml.
- Improved prompts: richer discovery context (SOX compliance, dual
  FastConnect, Hub-Spoke, OCI Vault), intentionally flawed arch for WA
  review (1/23 passed), DEP field findings, ECAL gap analysis.

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

examples/output-demo-pharma-mx/opt04-cost-estimate.json

@@ -0,0 +1,111 @@
+{
+  "cost": {
+    "line_items": [
+      {
+        "component": "ExaCS X11M Quarter Rack \u2014 Queretaro (Prod)",
+        "monthly_payg": "$18,500",
+        "monthly_byol": "$8,200",
+        "notes": "2 DB servers, 3 storage servers, BYOL"
+      },
+      {
+        "component": "ExaCS X11M Quarter Rack \u2014 Sao Paulo (DR)",
+        "monthly_payg": "$18,500",
+        "monthly_byol": "$8,200",
+        "notes": "ADG standby, BYOL"
+      },
+      {
+        "component": "ADB-S 16 ECPU (DW alternative \u2014 future)",
+        "monthly_payg": "$2,400",
+        "monthly_byol": "$1,200",
+        "notes": "Optional \u2014 migrate DW to ADB-S in Phase 2"
+      },
+      {
+        "component": "FastConnect 10Gbps Dual",
+        "monthly_payg": "$3,060",
+        "notes": "2 x $1,530/month"
+      },
+      {
+        "component": "OCI Vault",
+        "monthly_payg": "$500",
+        "notes": "HSM-backed key management"
+      },
+      {
+        "component": "Object Storage (50TB backup)",
+        "monthly_payg": "$1,200",
+        "notes": "RMAN backups + DW backup"
+      },
+      {
+        "component": "WAF + Logging + Monitoring",
+        "monthly_payg": "$800",
+        "notes": "WAF for EBS web tier + audit logging"
+      },
+      {
+        "component": "TOTAL",
+        "monthly_payg": "$45,000",
+        "monthly_byol": "$23,200",
+        "notes": "BYOL saves 48%"
+      }
+    ],
+    "assumptions": [
+      "BYOL assumes existing Oracle Database EE licenses with active support",
+      "ExaCS pricing based on current OCI list prices",
+      "DR standby at full rate (ADG requires active compute)",
+      "No middleware licensing included (EBS app tier on compute VMs)",
+      "FastConnect partner charges not included"
+    ],
+    "show_byol": true
+  },
+  "cost_comparison": {
+    "title": "Cost Comparison: On-Prem HW Refresh vs OCI Migration",
+    "col_headers": [
+      "Component",
+      "On-Prem Refresh (5yr)",
+      "OCI ExaCS BYOL",
+      "Delta"
+    ],
+    "rows": [
+      {
+        "item": "Infrastructure (hardware/cloud)",
+        "current": "$1,800,000 upfront",
+        "oci": "$278,400/yr",
+        "savings": "Break-even at 3.2 years"
+      },
+      {
+        "item": "Annual Support & Maintenance",
+        "current": "$220,000/yr",
+        "oci": "Included in OCI",
+        "savings": "-100%"
+      },
+      {
+        "item": "DR Infrastructure",
+        "current": "$0 (no DR today)",
+        "oci": "$98,400/yr",
+        "savings": "New capability \u2014 no DR today"
+      },
+      {
+        "item": "Data Center (power/cooling/space)",
+        "current": "$80,000/yr",
+        "oci": "$0",
+        "savings": "-100%"
+      },
+      {
+        "item": "DBA Operations (patching)",
+        "current": "$60,000/yr (part-time DBA)",
+        "oci": "$0 (automated)",
+        "savings": "-100%"
+      },
+      {
+        "item": "TOTAL ANNUAL (year 1)",
+        "current": "$2,160,000",
+        "oci": "$376,800",
+        "savings": "-83%"
+      },
+      {
+        "item": "TOTAL 3-YEAR TCO",
+        "current": "$2,880,000",
+        "oci": "$1,130,400",
+        "savings": "-$1.75M (61%)"
+      }
+    ]
+  }
+}