docs: address Codex/Copilot review on #3786

- target-debug: fault frame lives on PSP when EXC_RETURN bit2 set (FreeRTOS
  tasks) — decode LR before choosing $msp/$psp (Codex; valid, our verify
  happened to fault on MSP)
- esp-target-debug: show the Xtensa gdb for S3 in the attach recipe; clarify
  adapter serial = USB-SJ iSerial (colon MAC, hardware-verified) vs the
  CP2102N flasher uids in tinyusb.json (Codex; second half of the finding
  had the identifiers inverted)
- esp plan: align serial form with the verified command; record the real
  console-gate outcome (UART0, USB-SJ console untested) (Copilot)
- target-debug plan: Task 4 now consistently $JB/ARMv7-M matching the
  executed JLinkExe path (Copilot)
- drop IDE-local .idea files swept in by the rename commit (Copilot)

1 files changed, 0 insertions, 5 deletions

diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
deleted file mode 100644
index 79ee123c2..000000000
--- a/.idea/codeStyles/codeStyleConfig.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <state>
-    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
-  </state>
-</component>
\ No newline at end of file