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/tui/src/bottom_pane/feedback_view.rs

@@ -32,7 +32,7 @@ const BASE_ISSUE_URL: &str = "https://github.com/openai/codex/issues/new?templat
 /// both logs and rollout with classification + metadata.
 pub(crate) struct FeedbackNoteView {
     category: FeedbackCategory,
-    snapshot: codex_feedback::CodexLogSnapshot,
+    snapshot: llmx_feedback::CodexLogSnapshot,
     rollout_path: Option<PathBuf>,
     app_event_tx: AppEventSender,
     include_logs: bool,
@@ -46,7 +46,7 @@ pub(crate) struct FeedbackNoteView {
 impl FeedbackNoteView {
     pub(crate) fn new(
         category: FeedbackCategory,
-        snapshot: codex_feedback::CodexLogSnapshot,
+        snapshot: llmx_feedback::CodexLogSnapshot,
         rollout_path: Option<PathBuf>,
         app_event_tx: AppEventSender,
         include_logs: bool,
@@ -483,7 +483,7 @@ mod tests {
     fn make_view(category: FeedbackCategory) -> FeedbackNoteView {
         let (tx_raw, _rx) = tokio::sync::mpsc::unbounded_channel::<AppEvent>();
         let tx = AppEventSender::new(tx_raw);
-        let snapshot = codex_feedback::CodexFeedback::new().snapshot(None);
+        let snapshot = llmx_feedback::CodexFeedback::new().snapshot(None);
         FeedbackNoteView::new(category, snapshot, None, tx, true)
     }