Phase 2: Rust Workspace Transformation (Part 1)

- Renamed directory: codex-backend-openapi-models -> llmx-backend-openapi-models
- Updated all Cargo.toml files:
  - Package names: codex-* -> llmx-*
  - Library names: codex_* -> llmx_*
  - Workspace dependencies updated
- Renamed Rust source files:
  - codex*.rs -> llmx*.rs (all modules)
  - codex_conversation -> llmx_conversation
  - codex_delegate -> llmx_delegate
  - codex_message_processor -> llmx_message_processor
  - codex_tool_* -> llmx_tool_*
- Updated all Rust imports:
  - use codex_* -> use llmx_*
  - mod codex* -> mod llmx*
- Updated environment variables in code:
  - CODEX_HOME -> LLMX_HOME
  - .codex -> .llmx paths
- Updated protocol crate lib name for proper linking

Note: Some compilation errors remain (type inference issues) but all
renaming is complete. Will fix compilation in next phase.

🤖 Generated with Claude Code

llmx-rs/cli/tests/mcp_add_remove.rs

@@ -1,8 +1,8 @@
 use std::path::Path;
 
 use anyhow::Result;
-use codex_core::config::load_global_mcp_servers;
-use codex_core::config::types::McpServerTransportConfig;
+use llmx_core::config::load_global_mcp_servers;
+use llmx_core::config::types::McpServerTransportConfig;
 use predicates::str::contains;
 use pretty_assertions::assert_eq;
 use tempfile::TempDir;

llmx-rs/cli/tests/mcp_list.rs

@@ -1,9 +1,9 @@
 use std::path::Path;
 
 use anyhow::Result;
-use codex_core::config::edit::ConfigEditsBuilder;
-use codex_core::config::load_global_mcp_servers;
-use codex_core::config::types::McpServerTransportConfig;
+use llmx_core::config::edit::ConfigEditsBuilder;
+use llmx_core::config::load_global_mcp_servers;
+use llmx_core::config::types::McpServerTransportConfig;
 use predicates::prelude::PredicateBooleanExt;
 use predicates::str::contains;
 use pretty_assertions::assert_eq;