feat(udt-001): api layer with AuthController, Program.cs and Serilog

src/api/SIGCM2.Api/appsettings.json

@@ -0,0 +1,35 @@
+{
+  "ConnectionStrings": {
+    "SqlServer": "Server=__SET_IN_DEV_OR_ENV__;Database=SIGCM2;User Id=__SET_IN_DEV_OR_ENV__;Password=__SET_IN_DEV_OR_ENV__;TrustServerCertificate=True;"
+  },
+  "Jwt": {
+    "Issuer": "sigcm2.api",
+    "Audience": "sigcm2.web",
+    "AccessTokenMinutes": 60,
+    "PrivateKeyPath": "keys/private.pem",
+    "PublicKeyPath": "keys/public.pem",
+    "PrivateKey": null,
+    "PublicKey": null
+  },
+  "Cors": {
+    "AllowedOrigins": [ "http://localhost:5173" ]
+  },
+  "Serilog": {
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft.AspNetCore": "Warning",
+        "Microsoft.EntityFrameworkCore": "Warning"
+      }
+    },
+    "WriteTo": [
+      { "Name": "Console" },
+      {
+        "Name": "Seq",
+        "Args": { "serverUrl": "http://localhost:5341" }
+      }
+    ],
+    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ]
+  },
+  "AllowedHosts": "*"
+}