test(amdsmi) [AILITOOLS-311] Update API summary script

[amd-josnarlo]

Motivation

The API coverage report folded functional tests into the integration bucket, so the C and Python functional suites were invisible in the summary — and the table's Func column was in fact reporting integration counts under a functional heading. This adds first-class functional categories for both languages, so the report mirrors how the tests are actually organized (unit/, functional/, integration/).

Technical Details

Coverage report (tests/api_summary.py):

• Expand the test taxonomy from four categories to six by adding c_func_test and py_func_test
• Rename c_integration/py_integration to c_intg_test/py_intg_test for a consistent {lang}_{level}_test scheme across all six categories
• Add --c_func_test / --py_func_test, and align every default log filename with its category (_c_unit_test.log, _c_func_test.log, _c_intg_test.log, _py_unit_test.log, _py_func_test.log, _py_intg_test.log)
• Add a Func column to the summary table and relabel the previous Func column to Intg, which is what it was already counting
• Widen the CSV from six columns to eight, one per category
• Remove the unused header string
• Replace the check-then-act output-directory creation with mkdir(parents=True, exist_ok=True)

Docs (tests/README.md):

• Document all six log files, including the three amdsmitst invocations (*Unit*.*, *Functional*.*, *Integration*.*) that produce the C logs
• Refresh the option list, CSV example and summary-table example to match current output
• Correct the --output example to --output_dir and fix the documented --output_dir default

Issue Tracking

JIRA ID : AILITOOLS-311

Test Plan

Run C++ and Python unit, integration and functional tests and capture output
Run api_summary.py script against testing output

Test Result

API summary report generated properly

[therock-pr-bot]

✅ All Policy Checks Passed

Check	Status	Details
📝 PR Description	✅ Pass	—
⛔ Forbidden Files	✅ Pass	—
🧪 Unit Test	⚠️ Warning	Error: Source/code files changed without an accompanying unit test. Expected: add at least one test file named like test_<name>.py / test_<name>.cpp (or <name>_test.*). Current: code file(s) changed: projects/amdsmi/tests/api_summary.py; no test file found
🚫 Draft PR	🔜 To Be Enabled	—
🚩 Feature Flag	🔜 To Be Enabled	—
📊 Code Coverage	🔜 To Be Enabled	—

🎉 All policy checks passed!

📖 Need help? See the Policy FAQ for details on every check and how to fix failures.

🙋 Wish to Override Policy?