Initial commit: EifelDC - Discord-like Matrix chat platform

Includes server (Rust/Axum API proxy with voice management),
Tauri desktop client with Svelte UI, bot-sdk, Docker infra
(Synapse, PostgreSQL, Coturn, Nginx), and CI/CD pipeline.

infra/synapse/log.config

@@ -0,0 +1,39 @@
+version: 1
+
+formatters:
+  precise:
+    format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
+
+handlers:
+  console:
+    class: logging.StreamHandler
+    formatter: precise
+    stream: 'ext://sys.stdout'
+
+  file:
+    class: logging.handlers.RotatingFileHandler
+    formatter: precise
+    filename: /data/homeserver.log
+    maxBytes: 10485760
+    backupCount: 3
+    encoding: utf8
+
+loggers:
+  synapse:
+    handlers: [console, file]
+    level: INFO
+    propagate: false
+
+  synapse.storage.SQL:
+    handlers: [console, file]
+    level: WARNING
+    propagate: false
+
+  synapse.federation.transport:
+    handlers: [console, file]
+    level: WARNING
+    propagate: false
+
+root:
+  handlers: [console, file]
+  level: INFO