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/test/resources/application.yml

@@ -0,0 +1,14 @@
+# 单测不依赖本机 PostgreSQL：H2 模拟 PostgreSQL 语法习惯（版本仍以生产 PG15 为准）
+spring:
+  datasource:
+    url: jdbc:h2:mem:craftlabs_platform;MODE=PostgreSQL;DATABASE_TO_LOWER=TRUE;DEFAULT_NULL_ORDERING=HIGH
+    driver-class-name: org.h2.Driver
+    username: sa
+    password:
+  flyway:
+    enabled: true
+    table: flyway_platform_api
+
+platform:
+  jwt:
+    secret: unit-test-jwt-secret-at-least-32-chars-ok