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.

client/src-tauri/macos/EifelDC.entitlements

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <false/>
+    <key>com.apple.security.network.client</key>
+    <true/>
+    <key>com.apple.security.network.server</key>
+    <true/>
+    <key>com.apple.security.device.audio-input</key>
+    <true/>
+    <key>com.apple.security.device.camera</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-only</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-write</key>
+    <true/>
+</dict>
+</plist>

client/src-tauri/macos/Info.plist

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDisplayName</key>
+    <string>EifelDC</string>
+    <key>CFBundleExecutable</key>
+    <string>EifelDC</string>
+    <key>CFBundleIdentifier</key>
+    <string>de.eifeldc</string>
+    <key>CFBundleName</key>
+    <string>EifelDC</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleShortVersionString</key>
+    <string>0.1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSMinimumSystemVersion</key>
+    <string>10.15</string>
+    <key>NSHighResolutionCapable</key>
+    <true/>
+    <key>NSMicrophoneUsageDescription</key>
+    <string>EifelDC needs microphone access for voice channels.</string>
+    <key>NSCameraUsageDescription</key>
+    <string>EifelDC needs camera access for video calls.</string>
+    <key>LSApplicationCategoryType</key>
+    <string>public.app-category.social-networking</string>
+    <key>NSHumanReadableCopyright</key>
+    <string>Copyright 2024 EifelDC. All rights reserved.</string>
+</dict>
+</plist>

client/src-tauri/tauri.conf.json

@@ -0,0 +1,69 @@
+{
+    "build": {
+        "beforeDevCommand": "npm run dev",
+        "beforeBuildCommand": "npm run build",
+        "devPath": "http://localhost:5173",
+        "distDir": "../src-ui/dist"
+    },
+    "package": {
+        "productName": "EifelDC",
+        "version": "0.1.0"
+    },
+    "tauri": {
+        "allowlist": {
+            "all": false,
+            "shell": { "open": true },
+            "dialog": { "all": true },
+            "window": { "all": true }
+        },
+        "bundle": {
+            "active": true,
+            "identifier": "de.eifeldc",
+            "icon": [
+                "icons/32x32.png",
+                "icons/128x128.png",
+                "icons/128x128@2x.png",
+                "icons/icon.icns",
+                "icons/icon.ico"
+            ],
+            "resources": [],
+            "copyright": "",
+            "category": "SocialNetworking",
+            "shortDescription": "EifelDC - Matrix Chat Client",
+            "longDescription": "EifelDC is a Discord-like Matrix chat client built with Tauri, Svelte and Rust.",
+            "windows": {
+                "certificateThumbprint": null,
+                "digestAlgorithm": "sha256",
+                "timestampUrl": ""
+            },
+            "macOS": {
+                "frameworks": [],
+                "minimumSystemVersion": "10.15",
+                "exceptionDomain": "",
+                "signingIdentity": null,
+                "entitlements": "macos/EifelDC.entitlements",
+                "providerShortName": null
+            }
+        },
+        "security": {
+            "csp": "default-src 'self'; connect-src https: wss: http://localhost:*; img-src https: data:; style-src 'self' 'unsafe-inline'; script-src 'self'"
+        },
+        "windows": [
+            {
+                "title": "EifelDC",
+                "width": 1280,
+                "height": 720,
+                "minWidth": 800,
+                "minHeight": 600,
+                "resizable": true,
+                "fullscreen": false,
+                "decorations": true,
+                "transparent": false
+            }
+        ],
+        "systemTray": {
+            "iconPath": "icons/32x32.png",
+            "iconAsTemplate": true
+        }
+    }
+}