Revert "Fix Stalwart HTTP listener access for Traefik ingress"

This reverts commit c060c83. The TOML configuration approach caused
Stalwart to fail to start due to configuration parsing errors.

Will implement a different approach that doesn't require a full
configuration file rewrite.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/stalwart/stalwart-config.yaml

@@ -1,72 +0,0 @@
----
-# Stalwart Mail Server Configuration
-# This ConfigMap provides a complete configuration with security settings
-# that allow internal cluster IPs to access the HTTP listener.
-#
-# The HTTP listener is only accessible via ClusterIP service and Traefik ingress,
-# so allowing the internal pod network (10.244.0.0/16) is safe and necessary.
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: stalwart-config
-  namespace: stalwart
-data:
-  stalwart.toml: |
-    #
-    # Stalwart Mail Server Configuration
-    #
-
-    [store]
-    data = "rocksdb"
-
-    [store.rocksdb]
-    type = "rocksdb"
-    path = "/var/lib/stalwart"
-
-    #
-    # Server Configuration
-    #
-
-    [server]
-    hostname = "mail.basicstack.de"
-
-    # HTTP Listener (Web UI and API)
-    [server.listener.http]
-    bind = ["0.0.0.0:8080"]
-    protocol = "http"
-
-    # Security: Allow internal cluster IPs for Traefik ingress
-    # Pod network CIDR: 10.244.0.0/16
-    [server.listener.http.security]
-    allowed-ips = ["10.244.0.0/16", "127.0.0.1/32"]
-
-    # SMTP Listener (Port 25)
-    [server.listener.smtp]
-    bind = ["0.0.0.0:25"]
-    protocol = "smtp"
-
-    # Submission Listener (Port 587 with STARTTLS)
-    [server.listener.submission]
-    bind = ["0.0.0.0:587"]
-    protocol = "smtp"
-
-    # IMAPS Listener (Port 993 with TLS)
-    [server.listener.imaps]
-    bind = ["0.0.0.0:993"]
-    protocol = "imap"
-    tls.implicit = true
-
-    #
-    # TLS Configuration
-    #
-
-    [server.tls]
-    certificate = "file:///etc/stalwart/certs/tls.crt"
-    private-key = "file:///etc/stalwart/certs/tls.key"
-
-    #
-    # Logging
-    #
-
-    [tracing.level]
-    default = "info"

apps/stalwart/stalwart-fresh-deployment.yaml

@@ -100,8 +100,6 @@ spec:
       containers:
       - name: stalwart
         image: stalwartlabs/stalwart:v0.16.11
-        command: ["/usr/local/bin/stalwart"]
-        args: ["--config", "/etc/stalwart/stalwart.toml"]
         ports:
         - containerPort: 25
           name: smtp
@@ -127,9 +125,9 @@ spec:
         volumeMounts:
         - name: data
           mountPath: /var/lib/stalwart
-        - name: stalwart-config
-          mountPath: /etc/stalwart/stalwart.toml
-          subPath: stalwart.toml
+        - name: bootstrap-config
+          mountPath: /etc/stalwart/config.json
+          subPath: config.json
         - name: tls-certs
           mountPath: /etc/stalwart/certs
           readOnly: true
@@ -180,9 +178,9 @@ spec:
       - name: data
         persistentVolumeClaim:
           claimName: stalwart-data
-      - name: stalwart-config
+      - name: bootstrap-config
         configMap:
-          name: stalwart-config
+          name: stalwart-bootstrap-config
       - name: tls-certs
         secret:
           secretName: stalwart-tls