feat: pipe/wire path building API + oni_commander.py high-level commands

New Mod endpoints:
- POST /api/action/build_pipe: build gas/liquid pipe path (x1,y1)->(x2,y2) with bridge option
- POST /api/action/build_wire: build wire path with types: regular, heavy, conductive, heavy_conductive

New Python tool: tools/oni_commander.py
High-level commands that combine multiple low-level API calls:
- diagnose: full diagnostic (power, CO2, temp, diseases, pipes)
- fix_co2: auto-detect CO2 pockets and dig vent shafts
- fix_overload: detect overloaded circuits with fix suggestions
- emergency_o2: auto-check O2 and build OxygenDiffuser/Electrolyzer
- expand_base: dig + build walls/floors in one command (one-click room expansion)
- build_pipe_line: simplified CLI for pipe path building
- build_wire_line: simplified CLI for wire path building
All high-level commands auto-pause/resume the game.

CLI: build_pipe_line, build_wire_line added to oni_api.py

README.md

@@ -111,6 +111,17 @@ python3 tools/oni_api.py batch docs/batch_example.json  # 执行批量建造计
 # 优先级管理
 python3 tools/oni_api.py priority_global dig 7         # 全局挖掘优先级设为 7
 python3 tools/oni_api.py priority_type Electrolyzer 9  # 电解器建造优先级设为 9
+
+# 管道/电线路径
+python3 tools/oni_api.py build_pipe_line liquid 42 40 48 40  # 铺设液体管道
+python3 tools/oni_api.py build_wire_line regular 42 40 48 40  # 铺设电线
+
+# 高级指令（多个 API 组合）
+python3 tools/oni_commander.py diagnose               # 全面诊断
+python3 tools/oni_commander.py fix_co2                # 自动处理 CO2
+python3 tools/oni_commander.py fix_overload           # 处理过载电路
+python3 tools/oni_commander.py emergency_o2           # 紧急制氧
+python3 tools/oni_commander.py expand_base 40 40 10 8 # 一键拓展房间
 ```
 
 ### `tools/oni_analyzer.py` — 智能分析器