Dev compose improvements

1. Set the max connections to 20, I frequently see

db-1            | 2026-08-23 08:57:02.784 UTC [12641] FATAL:  sorry, too many clients already

2. Add a wildcard route in Traefik to serve DID documents locally.

3. Expose the PLC port locally so I can point an app at `http://localhost:2582` and be able to do full OAuth flows.

config.dev.toml

@@ -10,6 +10,7 @@ dir = "/app/frontend/public"
 
 [database]
 url = "postgres://postgres:postgres@db:5432/pds"
+max_connections = 20
 
 [storage]
 path = "/var/lib/tranquil-pds/blobs"

docker-compose.yaml

@@ -96,6 +96,8 @@ services:
     depends_on:
       db:
         condition: service_healthy
+    ports:
+      - "2582:2582"
 
   mailpit:
     profiles: [dev]

traefik.dev.yaml

@@ -18,6 +18,12 @@ http:
       service: frontend
       priority: 1
       tls: {}
+    handles:
+      rule: 'HostRegexp(`^.+\.pds\.test$`)'
+      entryPoints:
+        - websecure
+      service: backend
+      tls: {}
 
   services:
     backend: