Initial scaffold for OCI Deal Accelerator Codex plugin

Wraps the remote MCP server at https://mcp.tech-lad.com/deal-accelerator/mcp/
and bundles the companion skill for distribution via ai-lad.com.

- .codex-plugin/plugin.json: manifest with Oracle-red branding and 14-tool capabilities
- .mcp.json: streamable HTTP transport pointing at the production MCP URL
- skills/oci-deal-accelerator/SKILL.md: copied from the skill repo
- assets/: placeholder logo, icon, screenshot (replace before first release)
- README: install flow for Windows/macOS/Linux via ai-lad.com

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.codex-plugin/plugin.json

@@ -0,0 +1,50 @@
+{
+  "name": "oci-deal-accelerator",
+  "version": "0.1.0",
+  "description": "Oracle Cloud Infrastructure deal-acceleration toolkit: proposals, BOMs, cost estimates, diagrams, WA reviews, and reference-architecture search via a remote MCP server.",
+  "author": {
+    "name": "Diego Cabrera",
+    "email": "diego.e.cabrera@oracle.com"
+  },
+  "repository": "https://git.tech-lad.com.br/diegoecab/oci-deal-accelerator-codex",
+  "keywords": [
+    "oracle",
+    "oci",
+    "cloud",
+    "deal-accelerator",
+    "mcp",
+    "sales",
+    "architecture",
+    "well-architected"
+  ],
+  "skills": "./skills/",
+  "mcpServers": "./.mcp.json",
+  "interface": {
+    "displayName": "OCI Deal Accelerator",
+    "shortDescription": "Accelerate Oracle Cloud Infrastructure sales cycles with proposals, BOMs, diagrams, and architecture reviews.",
+    "longDescription": "OCI Deal Accelerator exposes 14 tools backed by a remote MCP server to support Oracle Solution Architects through the full deal cycle: full proposal generation, BOM and cost estimation (including AppCA), architecture diagrams, business cases, Well-Architected reviews, feature compatibility checks, competitive comparisons, reference-architecture and field-finding search, field-finding reporting, and ECAL readiness scoring.",
+    "developerName": "Diego Cabrera / Oracle SA",
+    "category": "Productivity",
+    "capabilities": [
+      "Proposal Generation",
+      "BOM & Cost Estimation",
+      "Architecture Diagrams",
+      "Well-Architected Review",
+      "Reference Architecture Search",
+      "Competitive Analysis",
+      "ECAL Readiness Scoring"
+    ],
+    "brandColor": "#C74634",
+    "logo": "./assets/logo.png",
+    "composerIcon": "./assets/icon.png",
+    "screenshots": [
+      "./assets/screenshot-1.png"
+    ],
+    "defaultPrompt": [
+      "Generate a full OCI proposal for a customer migrating their core banking workload.",
+      "Run a Well-Architected review on this architecture and list the top findings.",
+      "Search OCI reference architectures for a multi-region active-active e-commerce platform.",
+      "Produce a BOM and cost estimate for a 3-node Exadata Cloud Service deployment."
+    ]
+  }
+}