fix: Update test version references from 0.1.0 to 0.1.1

Update hardcoded version strings in test files to match the new 0.1.1 version:
- llmx-app-server user_agent test
- llmx-app-server test helper initialize
- llmx-mcp-server test helper initialize
- llmx-tui status snapshot tests (auto-updated via cargo insta)

All previously failing tests now pass.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

llmx-rs/mcp-server/tests/common/mcp_process.rs

@@ -144,7 +144,7 @@ impl McpProcess {
         let initialized = self.read_jsonrpc_message().await?;
         let os_info = os_info::get();
         let user_agent = format!(
-            "llmx_cli_rs/0.1.0 ({} {}; {}) {} (elicitation test; 0.0.0)",
+            "llmx_cli_rs/0.1.1 ({} {}; {}) {} (elicitation test; 0.0.0)",
             os_info.os_type(),
             os_info.version(),
             os_info.architecture().unwrap_or("unknown"),
@@ -163,7 +163,7 @@ impl McpProcess {
                     "serverInfo": {
                         "name": "llmx-mcp-server",
                         "title": "LLMX",
-                        "version": "0.1.0",
+                        "version": "0.1.1",
                         "user_agent": user_agent
                     },
                     "protocolVersion": mcp_types::MCP_SCHEMA_VERSION