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.

.ccw/workflows/cli-templates/schemas/explore-json-schema.json

@@ -63,6 +63,35 @@
             "type": "array",
             "items": {"type": "string"},
             "description": "Key symbols (functions, classes, types) in this file relevant to the task. Example: ['AuthService', 'login', 'TokenPayload']"
+          },
+          "key_code": {
+            "type": "array",
+            "items": {
+              "type": "object",
+              "required": ["symbol", "description"],
+              "properties": {
+                "symbol": {
+                  "type": "string",
+                  "description": "Symbol identifier (function, class, method, type). Example: 'AuthService.login()'"
+                },
+                "location": {
+                  "type": "string",
+                  "description": "Line range in file. Example: 'L45-L78'"
+                },
+                "description": {
+                  "type": "string",
+                  "minLength": 10,
+                  "description": "What this code does and why it matters. Example: 'JWT token generation with bcrypt verification, returns {token, refreshToken} pair'"
+                }
+              },
+              "additionalProperties": false
+            },
+            "description": "Key code constructs with descriptions. Richer complement to key_symbols. Populate for files with relevance >= 0.7."
+          },
+          "topic_relation": {
+            "type": "string",
+            "minLength": 15,
+            "description": "How this file relates to the exploration ANGLE/TOPIC. Must reference the angle explicitly. Example: 'Security exploration targets this file because JWT generation lacks token rotation'. Distinct from rationale (WHY selected) - topic_relation explains the CONNECTION to the exploration perspective."
           }
         },
         "additionalProperties": false