[Feature] Implement persistent storage to store user data

[tran-haison]

Persistent storage system

• Settings are saved to Garmin's Application.Properties
• Persists across app restarts

Settings saved

• User height (cm)
• User speed (km/h)
• User gender (Male/Female/Other enum)
• Experience level (Beginner/Intermediate/Advanced)
• Chart duration (15 min, 30 min, 1 hour, 2 hours)
• Cadence zones (min/max spm)

[github-actions]

🔒 Security Scan Results

🔒 Security Scan Results
=========================

Bandit Scan Results:
-------------------
Run started:2026-01-22 08:18:30.962995+00:00

Test results:
	No issues identified.

Code scanned:
	Total lines of code: 0
	Total lines skipped (#nosec): 0
	Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
	Total issues (by severity):
		Undefined: 0
		Low: 0
		Medium: 0
		High: 0
	Total issues (by confidence):
		Undefined: 0
		Low: 0
		Medium: 0
		High: 0
Files skipped (0):

✅ No critical security issues detected.

The code has passed all critical security checks.

[github-actions]

🔒 Security Scan Results

🔒 Security Scan Results
=========================

Bandit Scan Results:
-------------------
Run started:2026-01-22 09:18:14.792744+00:00

Test results:
	No issues identified.

Code scanned:
	Total lines of code: 0
	Total lines skipped (#nosec): 0
	Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
	Total issues (by severity):
		Undefined: 0
		Low: 0
		Medium: 0
		High: 0
	Total issues (by confidence):
		Undefined: 0
		Low: 0
		Medium: 0
		High: 0
Files skipped (0):

✅ No critical security issues detected.

The code has passed all critical security checks.

[raymondchoy14]

good to go