feat(workflow): add lightweight interactive planning workflow with in-memory execution and code exploration

- Introduced `lite-plan` command for intelligent task analysis and planning.
- Implemented dynamic exploration and clarification phases based on task complexity.
- Added support for auto mode and forced exploration flags.
- Defined output artifacts and session structure for planning results.
- Enhanced execution process with context handoff to `lite-execute`.

chore(temp): create temporary memory content and import script

- Added `.temp-memory-content.txt` to store session details and execution plan.
- Implemented `temp-import-memory.cjs` to handle memory import using core-memory command.
- Ensured cleanup of temporary files after execution.

.claude/skills/workflow-lite-plan/phases/01-lite-plan.md

@@ -255,6 +255,8 @@ cli-explore-agent autonomously handles: project structure discovery, schema load
 - [ ] Constraints are project-specific to ${angle}
 - [ ] JSON output follows schema exactly
 - [ ] clarification_needs includes options + recommended
+- [ ] Files with relevance >= 0.7 have key_code array describing key symbols
+- [ ] Files with relevance >= 0.7 have topic_relation explaining connection to ${angle}
 
 ## Execution
 **Write**: \`${sessionFolder}/exploration-${angle}.json\`