refactor: remove HAVE_DEBUG feature and related code

- Eliminated the HAVE_DEBUG preprocessor directive and all associated code from the RTL and test files.
- Updated the Emulator class to remove JTAG-related debug signals and configurations.
- Adjusted the pin map and JSON configurations to exclude debug-related entries.
- Modified the management core wrapper to only support the HAZARD3 core, removing references to the PICORV32 core.
- Updated tests to reflect the removal of the HAVE_DEBUG feature, ensuring they no longer check for debug-related conditions.
- Cleaned up various scripts and makefiles to remove dependencies on the HAVE_DEBUG flag, streamlining the build process.

configs/README.md

@@ -2,8 +2,9 @@
 
 This directory contains committed Make configuration profiles. Each profile
 selects SoC, PDK, ISA, CSR support, application, linker layout, and the
-supported validation tier. The user-extension fabric is fixed; the management
-core defaults to `HAZARD3` and may be set to `PICORV32` with `CORE`.
+supported validation tier. The management core is fixed to Hazard3 with its
+JTAG Debug Module enabled. The user-extension fabric exposes stable C0-C5
+slots, with PicoRV32 at C5.
 
 `ci/` contains pull-request profiles, `cluster/` contains configurations
 requiring site tools or PDKs, and `benchmark/` contains fixed-workload baseline

configs/benchmark/ihp130-hazard3.mk

@@ -1,5 +1,4 @@
 SOC             := MINI
-CORE            := HAZARD3
 PDK             := IHP130
 HAVE_PLL        := NO
 HAVE_SRAM_IF    := YES

configs/ci/ihp130-debug.mk

@@ -1,12 +1,10 @@
 SOC             := MINI
-CORE            := HAZARD3
 PDK             := IHP130
 HAVE_PLL        := NO
 HAVE_SRAM_IF    := YES
 HAVE_SRAM_MACRO := YES
 PDK_BEHAV       := YES
 HAVE_SVA        := NO
-HAVE_DEBUG      := YES
 ISA             := RV32IM
 HAVE_CSR        := NO
 APP             := debug