Finish removing f-string queries from Heasarc#13

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nkphysics merged 2 commits intomasterfrom

replace-final-fstrings-queries

Nov 16, 2025

Commits on Nov 16, 2025

Created SQLiteDB._get_stashed_rows(), applied it to SQLiteDB.fetch_sync(), removed f-string queryies from heasarc query functions, and enhanced the testing
nkphysics
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Updated README and added CHANGELOG
nkphysics
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