Initial project setup: Add contracts, API definitions, tests, and documentation

- Add Foundry project configuration (foundry.toml, foundry.lock)
- Add Solidity contracts (TokenFactory138, BridgeVault138, ComplianceRegistry, etc.)
- Add API definitions (OpenAPI, GraphQL, gRPC, AsyncAPI)
- Add comprehensive test suite (unit, integration, fuzz, invariants)
- Add API services (REST, GraphQL, orchestrator, packet service)
- Add documentation (ISO20022 mapping, runbooks, adapter guides)
- Add development tools (RBC tool, Swagger UI, mock server)
- Update OpenZeppelin submodules to v5.0.0

api/packages/openapi/v1/paths/iso.yaml

@@ -0,0 +1,74 @@
+paths:
+  /iso/inbound:
+    post:
+      summary: Submit inbound ISO-20022 message
+      description: Submit an inbound ISO-20022 message (from rail adapter)
+      operationId: submitInboundMessage
+      tags:
+        - ISO
+      security:
+        - mtls: []
+        - oauth2:
+            - triggers:write
+      x-roles:
+        - POLICY_OPERATOR
+      x-idempotency: true
+      parameters:
+        - $ref: '../components/parameters.yaml#/components/parameters/IdempotencyKey'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '../components/schemas.yaml#/components/schemas/SubmitInboundMessageRequest'
+          application/xml:
+            schema:
+              type: string
+              description: ISO-20022 XML payload
+      responses:
+        '201':
+          description: Message submitted and trigger created
+          content:
+            application/json:
+              schema:
+                $ref: '../components/schemas.yaml#/components/schemas/Trigger'
+        '400':
+          $ref: '../openapi.yaml#/components/responses/BadRequest'
+        '409':
+          $ref: '../openapi.yaml#/components/responses/Conflict'
+
+  /iso/outbound:
+    post:
+      summary: Submit outbound ISO-20022 message
+      description: Submit an outbound ISO-20022 message (from ops/client)
+      operationId: submitOutboundMessage
+      tags:
+        - ISO
+      security:
+        - oauth2:
+            - triggers:write
+      x-idempotency: true
+      parameters:
+        - $ref: '../components/parameters.yaml#/components/parameters/IdempotencyKey'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '../components/schemas.yaml#/components/schemas/SubmitOutboundMessageRequest'
+          application/xml:
+            schema:
+              type: string
+              description: ISO-20022 XML payload
+      responses:
+        '201':
+          description: Message submitted and trigger created
+          content:
+            application/json:
+              schema:
+                $ref: '../components/schemas.yaml#/components/schemas/Trigger'
+        '400':
+          $ref: '../openapi.yaml#/components/responses/BadRequest'
+        '409':
+          $ref: '../openapi.yaml#/components/responses/Conflict'
+