test: add case-aware path and CLI regression coverage (5096)

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Summary

Adds targeted regression tests for recently merged case-aware path handling (PR #151) and related CLI/export fixes where production code changed without adequate test coverage.

Risky behavior now covered

• PowerShell path quoting — normalize_path_arg mangled-path recovery, quote stripping, and trailing-slash cleanup (diff/merge CLI entry points).
• KOTOR install detection — is_kotor_install_dir across cli_utils, patching, and tslpatcher.diff.engine with case-mismatched chitin.key and install root paths.
• CaseAwarePath internals — _choose_case_match ambiguity resolution, clear_cache, directory-segment case correction, and cache reuse.
• Indoor kit loading — load_kits_unified with case-mismatched kits directory names.
• JSON export progress — _supports_live_progress disabled under CI / GITHUB_ACTIONS so automation logs remain visible.
• Installation scaffolding — create_installation preserves canonical Modules directory casing.
• TSLPatcher reader — ConfigReader.from_filepath resolves case-mismatched mod directory and ini filenames.

Test files added/updated

File	Change
Libraries/PyKotor/tests/diff_tool/test_cli_utils.py	New
Libraries/PyKotor/tests/common/test_is_kotor_install_dir.py	New
Libraries/PyKotor/tests/common/test_case_aware_path_cache.py	New
Libraries/PyKotor/tests/test_indoorkit_case_path.py	New
Libraries/PyKotor/tests/cli/test_json_commands.py	Updated
Libraries/PyKotor/tests/extract/test_installation.py	Updated
Libraries/PyKotor/tests/tslpatcher/test_reader.py	Updated

Why these tests materially reduce regression risk

Case-aware path resolution is now used across extract, diff, tslpatcher, and indoor-builder flows. A regression would surface as silent file-not-found failures on Linux/macOS when users or scripts pass paths with different casing than on-disk names. These tests lock in the behavior at the utility, CLI, and consumer layers.

The CI progress guard prevents JSON export from switching to TTY-only \r updates in GitHub Actions, which would hide percentage milestones from log aggregators and caplog-based tests.

Validation

PYTHONPATH=Libraries/PyKotor/src:Libraries/Utility/src \
  pytest Libraries/PyKotor/tests/diff_tool/test_cli_utils.py \
         Libraries/PyKotor/tests/common/test_is_kotor_install_dir.py \
         Libraries/PyKotor/tests/common/test_case_aware_path_cache.py \
         Libraries/PyKotor/tests/test_indoorkit_case_path.py \
         ... (35 tests) — all passed on Linux

Case-mismatch tests are skipped on Windows where filesystem semantics differ.

  

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🔨 Build Validation Summary

✅ Version Check: Passed

Tool Builds

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⚠️ HoloPazaak: cancelled
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🎉 All builds validated successfully! This PR is ready for merge.