rename ss-tools to superset-tools across the entire project

- Replace all occurrences of 'ss-tools' with 'superset-tools' in 104 files
- Rename git bundle file ss-tools.bundle → superset-tools.bundle
- Update .gitignore pattern accordingly
- Preserve variable names (hasSsTools etc.) and code identifiers

docs/api/doxygen_docs.h

@@ -16919,7 +16919,7 @@ void TranslationE2E(void);
 
 /// @defgroup PlaywrightConfig "PlaywrightConfig"
 /// @{
-/// @brief Playwright E2E test configuration for ss-tools frontend.
+/// @brief Playwright E2E test configuration for superset-tools frontend.
 /// @invariant All E2E tests run against a fully deployed stack (DB + backend + frontend).
 /// @}
 void PlaywrightConfig(void);