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/opt07-competitive.json

@@ -0,0 +1,25 @@
+{
+  "query": "ADB-S vs AWS Aurora PostgreSQL",
+  "aws_database_mappings": [],
+  "relevant_objections": [
+    {
+      "id": "OBJ-001",
+      "category": "market",
+      "objection": "OCI is a niche cloud \u2014 AWS/Azure are the leaders",
+      "response": "OCI is the #4 cloud globally and growing fastest in database PaaS.\nFor Oracle database workloads specifically, OCI is the leader:\n- Only cloud with Exadata hardware\n- Only cloud with Autonomous Database\n- Best Oracle license portability\nThe question isn't \"best cloud overall\" but \"best cloud for this workload.\"\n",
+      "evidence": "Gartner, IDC reports on cloud database market"
+    },
+    {
+      "id": "OBJ-004",
+      "category": "features",
+      "objection": "OCI doesn't have as many services as AWS",
+      "response": "True for breadth (AWS has 200+ services). For database and enterprise\nworkloads, OCI feature parity is strong. Key services are GA:\n- Compute, networking, storage, Kubernetes, serverless\n- Monitoring, logging, IAM, security\n- Queue, Streaming, API Gateway\nWhat matters is whether OCI has what *you* need, not a raw count.\n"
+    },
+    {
+      "id": "OBJ-005",
+      "category": "cost",
+      "objection": "We can get better pricing from AWS/Azure",
+      "response": "OCI list prices are already 30-50% below AWS for equivalent configs.\nFor Oracle specifically:\n- No Oracle license surcharge on OCI\n- BYOL discount is deeper on OCI\n- Data egress is 10x cheaper\nRequest a detailed cost comparison with matched configurations.\n"
+    }
+  ]
+}