🛡️ Sentinel: Fix DoS risk and redact PII in IMAP handler

[google-labs-jules]

Security hardening for IMAP handler:

• Added MAX_EMAIL_LIMIT to prevent Denial of Service via mailbox flooding.
• Redacted sensitive PII (email addresses, usernames) from debug logs.
• Verified with unit tests.

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PR created automatically by Jules for task 14276535742820432276 started by @clayauld

[google-labs-jules]

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[github-actions]

📊 Pull Request Analysis Report

🧪 Test Results

Metric	Value
Total Tests	245
✅ Passed	245
❌ Failed	0
⏭️ Skipped	0
💥 Errors	0
📈 Success Rate	100.0%

📋 Coverage Report

Metric	Value
Overall Coverage	81.4%
Total Lines	2796
Covered Lines	2275
Missing Lines	521

📁 File Coverage Breakdown

• __init__.py: 86.0%
• api_cache.py: 83.5%
• api_client.py: 84.5%
• api_config.py: 75.2%
• api_data_processor.py: 80.0%
• api_error_handler.py: 88.9%
• api_formatter.py: 94.7%
• api_models.py: 94.7%
• config_flow.py: 68.5%
• const.py: 100.0%

🎯 Recommendations

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📊 Analysis generated by GitHub Actions • View detailed test report

[github-actions]

🤖 Automated Code Review

🧪 Test Results

✅ All tests passed! Your changes don't break any existing functionality.

🔍 Linting Results Summary

✅ Black (Code Formatting) - PASSED

✅ Flake8 (Code Quality) - PASSED

✅ isort (Import Sorting) - PASSED

⚠️ MyPy (Type Checking)

custom_components/satcom_forecast/config_flow.py:212: error: Unused "type: ignore" comment  [unused-ignore]
custom_components/satcom_forecast/config_flow.py:212: error: Untyped decorator makes function "async_get_options_flow" untyped  [untyped-decorator]
custom_components/satcom_forecast/config_flow.py:212: note: Error code "untyped-decorator" not covered by "type: ignore" comment

Fix: Add missing type annotations and fix type errors. Common fixes:

• Add return type annotations: def function() -> ReturnType:
• Add parameter type hints: def function(param: ParamType):
• Import needed types: from typing import List, Dict, Optional

✅ Bandit (Security) - PASSED

✅ All Linting Checks Passed!

Great job! Your code meets all the linting standards.

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