Rename project: maxclaw → langcode

- Renamed all references from maxclaw to langcode across all files
- Renamed maxclaw.py → langcode.py
- Renamed completion scripts: maxclaw.bash/zsh → langcode.bash/zsh
- Updated Dockerfile, README, all Python files, HTML, JSON, YAML
- New Gitea repository: http://192.168.0.183:8085/truetype/langcode_agent.git

i18n/en.json

@@ -1,5 +1,5 @@
 {
-  "app.name": "MaxClaw Agent",
+  "app.name": "LangCode Agent",
   "app.description": "A configurable agent harness using DeepAgents",
   
   "commands.help": "Show available commands",
@@ -52,7 +52,7 @@
   "plugins.disabled": "Disabled",
   "plugins.no_plugins": "No plugins found.",
   
-  "agent.initializing": "Initializing MaxClaw Agent...",
+  "agent.initializing": "Initializing LangCode Agent...",
   "agent.initialized": "Agent initialized successfully!",
   "agent.tools.available": "Available tools:",
   "agent.tools.provider": "Provider tools: list models, test connections, set defaults",