feat(platform): I1 bootstrap, I2 M1 APIs, OpenAPI SSOT, and CI guards

Deliver dual Spring Boot services (platform API + webhook ingress), JWT
auth, Flyway with isolated history tables, customer/project/dictionary
endpoints, OpenAPI snapshot under contracts/, RUNBOOK, and CI that runs
on services/web/contracts paths plus enforcer + dependency tree ban on
craftlabs-auth-bitanswer.

Made-with: Cursor

services/delivery-platform-api/src/main/resources/application.yml

@@ -0,0 +1,36 @@
+server:
+  port: 8080
+
+spring:
+  application:
+    name: delivery-platform-api
+  # 架构约定：生产/联调使用 PostgreSQL 15；本地可 docker compose 见 services/docker-compose.yml
+  datasource:
+    url: ${SPRING_DATASOURCE_URL:jdbc:postgresql://localhost:5432/craftlabs_platform}
+    username: ${SPRING_DATASOURCE_USERNAME:craftlabs}
+    password: ${SPRING_DATASOURCE_PASSWORD:craftlabs}
+    driver-class-name: org.postgresql.Driver
+  flyway:
+    enabled: true
+    # 与同库共存的 license-webhook-ingress 默认 flyway_schema_history 隔离
+    table: flyway_platform_api
+
+mybatis-plus:
+  configuration:
+    map-underscore-to-camel-case: true
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info
+
+# JWT：生产必须通过环境变量覆盖（至少 32 字符）
+platform:
+  jwt:
+    secret: ${PLATFORM_JWT_SECRET:dev-only-unsafe-change-in-production-32chars!!}
+    expiry-seconds: ${PLATFORM_JWT_EXPIRY_SECONDS:43200}
+
+springdoc:
+  swagger-ui:
+    path: /swagger-ui.html