Version: 0.7.9.dev.260326

后端：
1.把最后一块拼图：schedule_refine也搬迁到了agent2，此时agent已经完全解耦。但是它没融入新架构，Codex只尝试把它调整了一部分，回退了一些错误的更改，保持着现在的可运行状态。下次继续改。
2.agent目录先保留，直到refine彻底融入新架构。
3.改善Codex主导的新史山结构:node文件夹里面大量文件，转而改成了module.go+module_tool.go的双文件格局，极大提升架构整洁度和代码可读性。
前端：
1.新开了日历界面，正在保持往前推进。做了很多更改，感觉越来越好了。

backend/agent2/prompt/schedule_refine.go

@@ -0,0 +1,131 @@
+package agentprompt
+
+const (
+	ScheduleRefineContractPrompt = `You are SmartFlow's schedule refine contract analyzer.
+Return exactly one JSON object.
+
+Schema:
+{
+  "intent": "short summary",
+  "strategy": "local_adjust|keep",
+  "hard_requirements": ["..."],
+  "hard_assertions": [
+    {
+      "metric": "source_move_ratio_percent|all_source_tasks_in_target_scope|source_remaining_count",
+      "operator": "==|<=|>=|between",
+      "value": 50,
+      "min": 50,
+      "max": 50,
+      "week": 17,
+      "target_week": 16
+    }
+  ],
+  "keep_relative_order": true,
+  "order_scope": "global|week"
+}
+
+Rules:
+- Default keep_relative_order=true unless the user explicitly allows reordering.
+- If tasks are being moved, strategy must be local_adjust.
+- hard_requirements must be concrete and verifiable.
+- hard_assertions should be as structured as possible.`
+
+	ScheduleRefinePlannerPrompt = `You are SmartFlow's schedule refine planner.
+Return exactly one JSON object:
+{
+  "summary": "one sentence",
+  "steps": ["step1","step2","step3"]
+}
+
+Rules:
+- Keep 3-4 steps.
+- Prefer "inspect first, then act".
+- If the goal is even spreading, the steps must mention SpreadEven and success gating.
+- If the goal is minimizing context switching, the steps must mention MinContextSwitch and success gating.`
+
+	ScheduleRefineReactPrompt = `You are SmartFlow's single-task micro ReAct executor.
+You may do exactly one thing each round:
+1. call one tool
+2. return done=true
+
+Tool groups:
+- Basic: QueryTargetTasks, QueryAvailableSlots, Move, Swap, BatchMove, Verify
+- Composite: SpreadEven, MinContextSwitch
+
+Return exactly one JSON object:
+{
+  "done": false,
+  "summary": "",
+  "goal_check": "",
+  "decision": "",
+  "missing_info": [],
+  "tool_calls": [
+    {
+      "tool": "QueryTargetTasks|QueryAvailableSlots|Move|Swap|BatchMove|SpreadEven|MinContextSwitch|Verify",
+      "params": {}
+    }
+  ]
+}
+
+Rules:
+- At most one tool call.
+- If done=true, tool_calls must be [].
+- Only modify suggested tasks.
+- Do not invent tools.
+- Respect REQUIRED_COMPOSITE_TOOL and COMPOSITE_TOOLS_ALLOWED.`
+
+	ScheduleRefinePostReflectPrompt = `You are SmartFlow's post-tool reflector.
+Return exactly one JSON object:
+{
+  "reflection": "",
+  "next_strategy": "",
+  "should_stop": false
+}
+
+Rules:
+- Base the reflection on the real tool result only.
+- If the tool failed, explain the failure reason.
+- If should_stop=true, it must mean the goal is already met or further work has low value.`
+
+	ScheduleRefineReviewPrompt = `You are SmartFlow's final refine reviewer.
+Return exactly one JSON object:
+{
+  "pass": true,
+  "reason": "",
+  "unmet": []
+}
+
+Rules:
+- If pass=true, unmet must be [].
+- If pass=false, reason must state the core gap.`
+
+	ScheduleRefineSummaryPrompt = `You are SmartFlow's result summarizer.
+Write a short user-facing summary in 2-4 Chinese sentences:
+1. what changed
+2. what benefit was achieved
+3. if final review still failed, what remains`
+
+	ScheduleRefineRepairPrompt = `You are SmartFlow's one-step repair executor.
+The current plan failed final review.
+Return exactly one JSON object with exactly one tool call:
+{
+  "done": false,
+  "summary": "",
+  "goal_check": "",
+  "decision": "",
+  "missing_info": [],
+  "tool_calls": [
+    {
+      "tool": "Move|Swap",
+      "params": {}
+    }
+  ]
+}
+
+Use standard Move keys only:
+- task_item_id
+- to_week
+- to_day
+- to_section_from
+- to_section_to`
+)