🛡️ Sentinel: [HIGH] Fix command injection in analytics sources check

[piyyy314]

🛡️ Sentinel: Fix Command Injection Risk in Analytics Sources Check

🚨 Severity: HIGH
💡 Vulnerability: Command injection in isInstalled and runCommand functions (src/lib/analytics/sources.ts) due to shell execution via child_process.exec with unescaped string interpolation.
🎯 Impact: Untrusted string input passed to isInstalled could execute arbitrary shell commands in the host process environment.
🔧 Fix: Replaced exec string invocation with execFile and argument arrays (which, where, or adb shell which). Rejected promise in runCommand when execFile fails so isInstalled returns false on missing executables.
✅ Verification: Added unit tests in test/jest/unit/analytics-sources.spec.ts testing isInstalled for existing and non-existing commands. All tests and linting pass.

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PR created automatically by Jules for task 8194896469899166931 started by @piyyy314

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[piyyy314]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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