[WIP] Fix code based on review comments

[Copilot]

• Remove unused requests dependency from simulator requirements.txt
• Fix live mode timestamp (don't truncate seconds) in simulate.py
• Normalize -0.0 battery_kw to 0.0 in simulate.py
• Validate --interval and --hours CLI args in simulate.py
• Use telemetry record timestamp for alerts in analytics.py
• Use telemetry record timestamp for recommendations in analytics.py
• Fix replace → replaceAll for site_status in TelemetryPanel.tsx
• Handle API failure in resolveAlert in App.tsx
• Handle API failure in dismissRec in App.tsx
• Restrict CORS origins via env var in main.py
• Make test_get_latest_telemetry self-contained in test_api.py
• Use Boolean column type for resolved/dismissed in models.py

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

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