Phase 1: Repository & Infrastructure Setup

- Renamed directories: codex-rs -> llmx-rs, codex-cli -> llmx-cli
- Updated package.json files:
  - Root: llmx-monorepo
  - CLI: @llmx/llmx
  - SDK: @llmx/llmx-sdk
- Updated pnpm workspace configuration
- Renamed binary: codex.js -> llmx.js
- Updated environment variables: CODEX_* -> LLMX_*
- Changed repository URLs to valknar/llmx

🤖 Generated with Claude Code

llmx-rs/execpolicy/tests/suite/parse_sed_command.rs

@@ -0,0 +1,23 @@
+use codex_execpolicy::Error;
+use codex_execpolicy::parse_sed_command;
+
+#[test]
+fn parses_simple_print_command() {
+    assert_eq!(parse_sed_command("122,202p"), Ok(()));
+}
+
+#[test]
+fn rejects_malformed_print_command() {
+    assert_eq!(
+        parse_sed_command("122,202"),
+        Err(Error::SedCommandNotProvablySafe {
+            command: "122,202".to_string(),
+        })
+    );
+    assert_eq!(
+        parse_sed_command("122202"),
+        Err(Error::SedCommandNotProvablySafe {
+            command: "122202".to_string(),
+        })
+    );
+}