fix(hipdnn): expose python error code bindings

[tvy-amd]

Summary

• Exposes every hipdnn_frontend::ErrorCode value through the Python hipdnn.ErrorCode nanobind enum.
• Adds a CPU-only drift-prevention pytest that derives expected enum names from frontend/include/hipdnn_frontend/Error.hpp and verifies each one is usable with hipdnn.Error.

Risk assessment

• Low risk: binding-only enum exposure; no C++ enum, backend status, provider, FlatBuffers, or execution-path changes.
• Main risk is stale or incomplete enum parity; covered by the new source-header-derived Python test.

Testing summary

• uvx --system-certs pre-commit run --files projects/hipdnn/python/hipdnn_frontend/test/test_error_paths.py projects/hipdnn/python/src/types_bindings.cpp — passed.
• Static enum parity check compared frontend/include/hipdnn_frontend/Error.hpp against python/src/types_bindings.cpp — passed.
• cmake -B build-superbuild -GNinja -DROCM_LIBS_ENABLE_COMPONENTS="hipdnn;miopen-provider" -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=cmake/toolchains/rocm-clang.cmake -DCMAKE_INSTALL_PREFIX=/home/tvy/dev/WIP/worktrees/rocm-libraries/ALMIOPEN-2257/superbuild/install — blocked locally: /opt/rocm/lib/llvm/bin is absent on this workstation.
• pytest red/green run was not available before environment setup because the workstation had no pytest command and no built hipdnn_frontend_python extension.

Testing checklist

• Pre-commit on changed files
• Static enum parity check
• Local superbuild
• Python binding pytest against rebuilt extension

Technical changes

• projects/hipdnn/python/src/types_bindings.cpp: adds missing ErrorCode enum values to the Python binding.
• projects/hipdnn/python/hipdnn_frontend/test/test_error_paths.py: adds TestErrorCodeBindings to prevent future C++/Python enum drift.

JIRA ID: ALMIOPEN-2257

[therock-pr-bot]

❌ PR Check — Action Required

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📊 Code Coverage	🔜 To Be Enabled	—

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[tvy-amd]

This may be harder to do later when the bindings move out, but for now this is the best we got for making sure the bindings don't get out of sync with the cpp

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.

❌ Your project status has failed because the head coverage (76.84%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #9290   +/-   ##
========================================
  Coverage    65.07%   65.07%           
========================================
  Files         2685     2685           
  Lines       422262   422262           
  Branches     62741    62741           
========================================
+ Hits        274750   274754    +4     
+ Misses      126793   126791    -2     
+ Partials     20719    20717    -2     

Flag	Coverage Δ		*Carryforward flag
TensileLite	35.05% <ø> (ø)		Carriedforward from a2799c7
hipBLAS	90.81% <ø> (ø)		Carriedforward from a2799c7
hipBLASLt	34.69% <ø> (ø)		Carriedforward from a2799c7
hipCUB	82.68% <ø> (ø)		Carriedforward from a2799c7
hipDNN	86.13% <ø> (+0.01%)	⬆️
hipFFT	50.88% <ø> (ø)		Carriedforward from a2799c7
hipRAND	76.12% <ø> (ø)		Carriedforward from a2799c7
hipSOLVER	69.18% <ø> (ø)		Carriedforward from a2799c7
hipSPARSE	86.10% <ø> (ø)		Carriedforward from a2799c7
rocBLAS	47.91% <ø> (ø)		Carriedforward from a2799c7
rocFFT	51.65% <ø> (ø)		Carriedforward from a2799c7
rocRAND	57.02% <ø> (ø)		Carriedforward from a2799c7
rocSOLVER	76.84% <ø> (ø)		Carriedforward from a2799c7
rocSPARSE	72.37% <ø> (ø)		Carriedforward from a2799c7
rocThrust	91.36% <ø> (ø)		Carriedforward from a2799c7

*This pull request uses carry forward flags. Click here to find out more.
see 2 files with indirect coverage changes

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