Phase 6: Testing & Validation - Additional Fixes

Fixed remaining references found during testing:

Rust source code fixes:
- Updated CLI bin_name and override_usage: codex → llmx
- Updated test examples in wsl_paths.rs
- Updated GitHub URLs: github.com/openai/codex → github.com/valknar/llmx
- Updated directory references: ~/.codex/ → ~/.llmx/
- Updated documentation link: "Codex docs" → "LLMX docs"
- Updated feedback URL to point to valknar/llmx repository

Configuration files:
- Regenerated llmx-cli/package-lock.json with updated package name
- Updated pnpm-lock.yaml

Test results:
- TypeScript SDK build: ✓ Success
- TypeScript lint: ✓ Pass
- Rust tests: 12/13 passed (1 locale-specific test failure unrelated to rename)
- Rust release build: In progress

Files changed: 22 files (49 insertions, 46 deletions)

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

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

llmx-rs/core/src/rollout/recorder.rs

@@ -40,8 +40,8 @@ use llmx_protocol::protocol::SessionSource;
 /// Rollouts are recorded as JSONL and can be inspected with tools such as:
 ///
 /// ```ignore
-/// $ jq -C . ~/.codex/sessions/rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl
-/// $ fx ~/.codex/sessions/rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl
+/// $ jq -C . ~/.llmx/sessions/rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl
+/// $ fx ~/.llmx/sessions/rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl
 /// ```
 #[derive(Clone)]
 pub struct RolloutRecorder {
@@ -312,7 +312,7 @@ fn create_log_file(
     config: &Config,
     conversation_id: ConversationId,
 ) -> std::io::Result<LogFileInfo> {
-    // Resolve ~/.codex/sessions/YYYY/MM/DD and create it if missing.
+    // Resolve ~/.llmx/sessions/YYYY/MM/DD and create it if missing.
     let timestamp = OffsetDateTime::now_local()
         .map_err(|e| IoError::other(format!("failed to get local time: {e}")))?;
     let mut dir = config.codex_home.clone();