refactor(examples): group trace examples under examples/system/tracing/

Move 6 trace-related examples (app_trace_basic, app_trace_to_plot,
esp_trace, gcov, sysview_tracing, sysview_tracing_heap_log) from
examples/system/ into a dedicated examples/system/tracing/
subdirectory for better organization.

Update all path references across documentation (en + zh_CN),
build-test-rules, CI configs and component READMEs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KZAGzon27T12sGbDPPbZ8G

docs/zh_CN/api-guides/tracing/custom-trace-library.rst

@@ -69,4 +69,4 @@ FreeRTOS 跟踪钩子
 应用示例
 --------
 
-- :example:`system/esp_trace_custom_library` 是一个最简模板，演示如何接入外部编码器、说明 FreeRTOS 跟踪钩子头文件的包含链，以及通过编码器锁实现多核序列化。
+- :example:`system/tracing/esp_trace_custom_library` 是一个最简模板，演示如何接入外部编码器、说明 FreeRTOS 跟踪钩子头文件的包含链，以及通过编码器锁实现多核序列化。

docs/zh_CN/api-guides/tracing/gcov.rst

@@ -23,4 +23,4 @@ Gcov 使用跟踪基础设施进行主机数据传输，但尚未完全遵循 :d
 应用示例
 --------
 
-- :example:`system/gcov` 演示如何为项目添加代码覆盖率，并通过 JTAG 收集覆盖率数据。
+- :example:`system/tracing/gcov` 演示如何为项目添加代码覆盖率，并通过 JTAG 收集覆盖率数据。

docs/zh_CN/api-guides/tracing/index.rst

@@ -101,8 +101,8 @@ ESP-IDF 提供了一套跟踪系统，用于程序行为分析和调试。以较
 示例
 ----
 
-- :example:`system/app_trace_basic`：基础应用程序跟踪
-- :example:`system/sysview_tracing`：SystemView 跟踪示例
-- :example:`system/sysview_tracing_heap_log`：基于 SystemView 的堆跟踪
-- :example:`system/gcov`：通过 JTAG 获取源代码覆盖率
-- :example:`system/esp_trace_custom_library`：外部跟踪库集成模板
+- :example:`system/tracing/app_trace_basic`：基础应用程序跟踪
+- :example:`system/tracing/sysview_tracing`：SystemView 跟踪示例
+- :example:`system/tracing/sysview_tracing_heap_log`：基于 SystemView 的堆跟踪
+- :example:`system/tracing/gcov`：通过 JTAG 获取源代码覆盖率
+- :example:`system/tracing/esp_trace_custom_library`：外部跟踪库集成模板

docs/zh_CN/api-guides/tracing/sysview.rst

@@ -136,5 +136,5 @@ Start 子命令语法：
 应用示例
 --------
 
-- :example:`system/sysview_tracing` 演示如何使用 SEGGER SystemView 记录 FreeRTOS 任务与系统事件。
-- :example:`system/sysview_tracing_heap_log` 演示如何在记录 SystemView 事件的同时，对堆内存分配进行跟踪。
+- :example:`system/tracing/sysview_tracing` 演示如何使用 SEGGER SystemView 记录 FreeRTOS 任务与系统事件。
+- :example:`system/tracing/sysview_tracing_heap_log` 演示如何在记录 SystemView 事件的同时，对堆内存分配进行跟踪。

docs/zh_CN/api-guides/tracing/transports.rst

@@ -396,8 +396,8 @@ Log Trace Processor 命令选项
 应用示例
 --------
 
-- :example:`system/app_trace_basic` 演示如何使用应用层跟踪库通过 JTAG 将日志消息记录到主机，作为 UART 日志的更快替代方案。
-- :example:`system/app_trace_to_plot` 演示如何通过 JTAG 向主机发送并绘制虚拟传感器数据。
+- :example:`system/tracing/app_trace_basic` 演示如何使用应用层跟踪库通过 JTAG 将日志消息记录到主机，作为 UART 日志的更快替代方案。
+- :example:`system/tracing/app_trace_to_plot` 演示如何通过 JTAG 向主机发送并绘制虚拟传感器数据。
 
 API 参考
 --------

docs/zh_CN/api-reference/system/app_trace.rst

@@ -17,9 +17,9 @@ ESP-IDF 支持用于程序行为分析的 **应用级追踪** 功能。在 menuc
 应用示例
 ---------------
 
-- :example:`system/app_trace_to_plot` 演示了如何使用应用层跟踪库通过 JTAG 发送并绘制虚拟传感器数据到主机上，提供了比通过 UART 记录更快的替代方案。
+- :example:`system/tracing/app_trace_to_plot` 演示了如何使用应用层跟踪库通过 JTAG 发送并绘制虚拟传感器数据到主机上，提供了比通过 UART 记录更快的替代方案。
 
-- :example:`system/app_trace_basic` 演示了如何使用应用层跟踪库通过 JTAG 向主机记录消息，提供了比 UART 记录更快的替代方案。
+- :example:`system/tracing/app_trace_basic` 演示了如何使用应用层跟踪库通过 JTAG 向主机记录消息，提供了比 UART 记录更快的替代方案。
 
 API 参考
 -------------

docs/zh_CN/api-reference/system/esp_trace.rst

@@ -13,7 +13,7 @@ ESP Trace
 应用示例
 --------
 
-- :example:`system/esp_trace_custom_library` 演示如何将外部跟踪库（编码器）与 ``esp_trace`` 核心集成。
+- :example:`system/tracing/esp_trace_custom_library` 演示如何将外部跟踪库（编码器）与 ``esp_trace`` 核心集成。
 
 API 参考
 --------

docs/zh_CN/api-reference/system/heap_debug.rst

@@ -653,15 +653,15 @@ ESP-IDF 集成了用于请求 :ref:`堆内存信息 <heap-information>`、:ref:`
   Stop parsing trace. (Timeout 0.000000 sec while reading 1 byte!)
   Process events from '['/tmp/heap.svdat']'...
   [0.002244575] HEAP: Allocated 1 byte @ 0x3ffaffd8 from task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.002258425] HEAP: Allocated 2 bytes @ 0x3ffaffe0 from task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:48
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:48
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.002563725] HEAP: Freed bytes @ 0x3ffaffe0 from the task "free" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.002782950] HEAP: Freed bytes @ 0x3ffb40b8 from the task "main" on core 0 by:
@@ -673,39 +673,39 @@ ESP-IDF 集成了用于请求 :ref:`堆内存信息 <heap-information>`、:ref:`
   /home/user/projects/esp/esp-idf/components/freertos/tasks.c:4590
 
   [0.102436025] HEAP: Allocated 2 bytes @ 0x3ffaffe0 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.102449800] HEAP: Allocated 4 bytes @ 0x3ffaffe8 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:48
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:48
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.102666150] HEAP: Freed bytes @ 0x3ffaffe8 from the task "free" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.202436200] HEAP: Allocated 3 bytes @ 0x3ffaffe8 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.202451725] HEAP: Allocated 6 bytes @ 0x3ffafff0 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:48
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:48
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.202667075] HEAP: Freed bytes @ 0x3ffafff0 from the task "free" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.302436000] HEAP: Allocated 4 bytes @ 0x3ffafff0 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.302451475] HEAP: Allocated 8 bytes @ 0x3ffb40b8 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:48
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:48
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.302667500] HEAP: Freed bytes @ 0x3ffb40b8 from the task "free" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:31 (discriminator 9)
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   Processing completed.
@@ -717,19 +717,19 @@ ESP-IDF 集成了用于请求 :ref:`堆内存信息 <heap-information>`、:ref:`
   Processed 14 heap events.
 
   [0.002244575] HEAP: Allocated 1 bytes @ 0x3ffaffd8 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.102436025] HEAP: Allocated 2 bytes @ 0x3ffaffe0 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.202436200] HEAP: Allocated 3 bytes @ 0x3ffaffe8 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   [0.302436000] HEAP: Allocated 4 bytes @ 0x3ffafff0 from the task "alloc" on core 0 by:
-  /home/user/projects/esp/esp-idf/examples/system/sysview_tracing_heap_log/main/sysview_heap_log.c:47
+  /home/user/projects/esp/esp-idf/examples/system/tracing/sysview_tracing_heap_log/main/sysview_heap_log.c:47
   /home/user/projects/esp/esp-idf/components/freertos/port.c:355 (discriminator 1)
 
   Found 10 leaked bytes in 4 blocks.