feat: initialize Nuanji (Warm Notes) project

- Base platform from base.git (ERP base: auth, core, config, message, workflow, plugin)
- Created erp-diary module skeleton (lib.rs, dto.rs, error.rs, event.rs, state.rs)
- Integrated erp-diary into workspace and erp-server
- Added DiaryModule registration in main.rs
- Added DiaryState FromRef in state.rs
- Diary routes mounted (empty routes, ready for implementation)
- Product design spec v1.2 preserved in docs/
- Implementation plan preserved in plans/

Cargo check: OK
Cargo test: OK (78+ base tests passing)

docker/prometheus/prometheus.yml

@@ -0,0 +1,32 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+rule_files:
+  - "alerts.yml"
+
+scrape_configs:
+  - job_name: "hms"
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["app:9090"]
+        labels:
+          service: "hms-server"
+
+  - job_name: "postgres"
+    static_configs:
+      - targets: ["postgres-exporter:9187"]
+        labels:
+          service: "postgresql"
+
+  - job_name: "redis"
+    static_configs:
+      - targets: ["redis-exporter:9121"]
+        labels:
+          service: "redis"
+
+  - job_name: "nginx"
+    static_configs:
+      - targets: ["nginx-exporter:9113"]
+        labels:
+          service: "nginx"