Add Arrtrix runtime, config, onboarding, and webhook support

- Implement runtime package for bridge startup, config loading, and env
  overrides
- Add onboarding package for management room welcome messages
- Add matrixcmd package for command processing and help
- Add webhook package with Radarr webhook support and validation
- Extend connector config for webhooks and validation
- Update default config and example config for new options
- Add tests for new packages and config validation
- Change database type default to sqlite3-fk-wal

packages/arrtrix/pkg/config/config_test.go

@@ -0,0 +1,122 @@
+package config
+
+import (
+	"testing"
+
+	"maunium.net/go/mautrix/bridgev2/bridgeconfig"
+)
+
+func TestLoadDefaultsHomeserverSoftware(t *testing.T) {
+	cfg, err := Load([]byte(`
+bridge:
+  command_prefix: "!arr"
+homeserver:
+  address: http://127.0.0.1:8008
+  domain: test.local
+appservice:
+  id: arrtrix
+  bot:
+    username: arrtrixbot
+    displayname: Arrtrix Bot
+  username_template: arrtrix_{{.}}
+database:
+  type: sqlite3-fk-wal
+  uri: file:arrtrix.db?_txlock=immediate
+logging:
+  min_level: info
+  writers:
+    - type: stdout
+      format: pretty-colored
+`))
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	if cfg.Homeserver.Software != bridgeconfig.SoftwareStandard {
+		t.Fatalf("expected homeserver software default %q, got %q", bridgeconfig.SoftwareStandard, cfg.Homeserver.Software)
+	}
+}
+
+func TestCompileSetsInternalDefaultsForHiddenSections(t *testing.T) {
+	cfg, err := Load([]byte(`
+bridge:
+  command_prefix: "!arr"
+  permissions:
+    "*": relay
+homeserver:
+  address: http://127.0.0.1:8008
+  domain: test.local
+appservice:
+  id: arrtrix
+  bot:
+    username: arrtrixbot
+    displayname: Arrtrix Bot
+  username_template: arrtrix_{{.}}
+database:
+  type: sqlite3-fk-wal
+  uri: file:arrtrix.db?_txlock=immediate
+logging:
+  min_level: info
+  writers:
+    - type: stdout
+      format: pretty-colored
+`))
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	runtimeCfg := cfg.Compile()
+	if !runtimeCfg.Matrix.MessageErrorNotices {
+		t.Fatalf("expected message error notices to stay enabled")
+	}
+	if !runtimeCfg.Matrix.FederateRooms {
+		t.Fatalf("expected federated rooms to stay enabled")
+	}
+	if runtimeCfg.DoublePuppet.Servers == nil || runtimeCfg.DoublePuppet.Secrets == nil {
+		t.Fatalf("expected hidden double puppet maps to be initialized")
+	}
+}
+
+func TestLoadIgnoresLegacyHiddenSections(t *testing.T) {
+	cfg, err := Load([]byte(`
+bridge:
+  command_prefix: "!arr"
+homeserver:
+  address: http://127.0.0.1:8008
+  domain: test.local
+appservice:
+  id: arrtrix
+  bot:
+    username: arrtrixbot
+    displayname: Arrtrix Bot
+  username_template: arrtrix_{{.}}
+database:
+  type: sqlite3-fk-wal
+  uri: file:arrtrix.db?_txlock=immediate
+logging:
+  min_level: info
+  writers:
+    - type: stdout
+      format: pretty-colored
+matrix:
+  federate_rooms: false
+provisioning:
+  shared_secret: ignored
+double_puppet:
+  secrets:
+    test.local: secret
+encryption:
+  allow: true
+`))
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	runtimeCfg := cfg.Compile()
+	if !runtimeCfg.Matrix.FederateRooms {
+		t.Fatalf("expected runtime defaults to win for hidden legacy sections")
+	}
+	if len(runtimeCfg.DoublePuppet.Secrets) != 0 {
+		t.Fatalf("expected hidden double puppet secrets to stay internal-only")
+	}
+}