docs(target-debug): manuals, breakpoint/watchpoint arsenal, RTT via OpenOCD

- Link J-Link UM08001, OpenOCD and GDB (Tenth Ed.) manuals
- bp/wp depth with halt-per-hit cost model. Verified on stm32f407disco
  (J-Link) + raspberry_pi_pico (OpenOCD): FPB/DWT budget reads (M4 6 bp/4 wp,
  M0+ 4/2 exact), 'Hardware watchpoint' confirmation rule (software fallback
  single-steps = USB death), OpenOCD data-VALUE watchpoints, dprintf +
  breakpoint command lists exercised on hardware; JLinkGDBServer -singlerun
  lifecycle gotcha
- RTT is not J-Link-only: OpenOCD rtt setup/start/server verified on pico
  (control block found at the nm address, LOG=2 boot banner captured over nc)

5 files changed, 42 insertions, 0 deletions

diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 000000000..35c56fc87
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,10 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <RiderCodeStyleSettings>
+      <option name="/Default/CodeStyle/CodeFormatting/CppClangFormat/EnableClangFormatSupport/@EntryValue" value="true" type="bool" />
+    </RiderCodeStyleSettings>
+    <clangFormatSettings>
+      <option name="ENABLED" value="true" />
+    </clangFormatSettings>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 000000000..79ee123c2
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/.idea/improve-debug-skill-agent.iml b/.idea/improve-debug-skill-agent.iml
new file mode 100644
index 000000000..4c9423543
--- /dev/null
+++ b/.idea/improve-debug-skill-agent.iml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module classpath="CIDR" type="CPP_MODULE" version="4" />
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 000000000..6b55c5c28
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,17 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="CppAbstractVirtualFunctionCallInCtor" enabled="true" level="ERROR" enabled_by_default="true" />
+    <inspection_tool class="CppAccessSpecifierWithNoDeclarations" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppDFANullDereference" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="CppDFATimeOver" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="CppEnforceForStatementBraces" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="CppFunctionIsNotImplemented" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppIdenticalOperandsInBinaryExpression" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppPossiblyUninitializedMember" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppRedundantMemberInitializer" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppSmartPointerVsMakeFunction" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppSomeObjectMembersMightNotBeInitialized" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="CppUninitializedDependentBaseClass" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 000000000..e97c64966
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/improve-debug-skill-agent.iml" filepath="$PROJECT_DIR$/.idea/improve-debug-skill-agent.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file