⚡ Bolt: Consolidate ownership and permission modifications into a single pass

[WHYCRASH]

💡 What: Replaced an external os.system("chown -R ...") call with native Python os.chown executed inside the pre-existing os.walk loop in cidata_ingest.py.
🎯 Why: Calling out to external binaries (chown) via os.system incurs the overhead of spawning a subshell and process. Furthermore, doing this right before a native os.walk loop means traversing the same directory tree multiple times redundantly.
📊 Impact: Eliminates a subshell execution and reduces I/O by traversing the directory tree exactly once for both ownership and permissions operations. This speeds up the secrets ingestion process significantly, especially on larger trees.
🔬 Measurement: Run the test suite and verify cidata_ingest.py performs correct modifications. Profiling execution time over a large directory structure will show reduced latency compared to the dual-pass approach.

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PR created automatically by Jules for task 957408178043130844 started by @WHYCRASH

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