🛡️ Sentinel: [CRITICAL] Fix SQL injection in mobile commands

[ovasylenko]

🚨 Severity: CRITICAL
💡 Vulnerability: Constructing SQL queries using format! for IN (...) clauses in ack_mobile_commands makes it brittle and potentially susceptible to SQL injection risks.
🎯 Impact: Prevents potential injection if parameters are not properly validated.
🔧 Fix: Replaced format! string joining with sqlx::QueryBuilder and .separated() for strictly typed SQL binding.
✅ Verification: Ran cargo clippy -p orch8-storage and cargo test -p orch8-storage to ensure there are no regressions.

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PR created automatically by Jules for task 16182225680356572640 started by @ovasylenko

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