[Draft] [Android] [WebView] Provide safe mode that doesn't require enabling js

[FranAguilera]

What

Provide a native mode that doesn't rely on injecting js script.

Verification

• Testing with gradle-test-app

---

• CHANGELOG.md's "Unreleased" section has been updated, if applicable.

[github-actions]

Size Comparison Report (x86_64)

Metric	APK (KB)	SO (KB)
Baseline	3370	1244
Current	3370	1244
Difference	0	0

APK size unchanged. SO size unchanged.

[github-actions]

Android Benchmark Results

Device: PR: Emulator - Android SDK built for x86_64 (API 31) | main: Emulator - Android SDK built for x86_64 (API 31)

Note: Benchmarks run on emulator. Results may vary between runs and may differ from physical devices.

Allocations

Test	PR	main	Δ
logHttpNetworkLog50FieldsAndHeadersAndFieldProviders	915	914	+0.1%
logNotMatched10Fields	18	18	0.0%
logNotMatched5000Fields	45	46	-2.2%
logNotMatched500Fields	33	25	+32.0%
logNotMatched5Fields	14	14	0.0%
logNotMatchedNoFields	1	1	0.0%
trackSpansWithFields	136	136	0.0%
trackSpansWithoutFields	55	55	0.0%
webViewBridgeBridgeReady	61	62	-1.6%
webViewBridgeCustomLog	67	67	0.0%
webViewBridgeInvalidJson	38	38	0.0%
webViewBridgeWebVitalCLS	115	117	-1.7%

Timing

Test	PR	main	Δ
logHttpNetworkLog50FieldsAndHeadersAndFieldProviders	230.99 us	232.48 us	-0.6%
logNotMatched10Fields	5.74 us	5.65 us	+1.5%
logNotMatched5000Fields	2.24 ms	2.21 ms	+1.3%
logNotMatched500Fields	246.22 us	247.91 us	-0.7%
logNotMatched5Fields	3.16 us	3.16 us	0.0%
logNotMatchedNoFields	421 ns	428 ns	-1.8%
trackSpansWithFields	468.05 us	465.61 us	+0.5%
trackSpansWithoutFields	7.64 us	7.59 us	+0.7%
webViewBridgeBridgeReady	7.86 us	8.00 us	-1.8%
webViewBridgeCustomLog	8.67 us	8.85 us	-2.0%
webViewBridgeInvalidJson	109.92 us	77.03 us	+42.7%
webViewBridgeWebVitalCLS	15.43 us	15.57 us	-0.9%