Added New phase for NDK Plugin checks.

[SB-sachinp]

In the diagnostic snapshot, we added phase-level instrumentation for NDK plugin load:

• plugin_init
• library_resolve
• load_library
• link_native
• post_init

Each phase emits structured fields:

• phase_start_ns
• phase_end_ns
• phase_duration_ns
• thread_name
• is_main_thread
• outcome (ok / error)
• error_class (only on error)

Plus an extra resolve check to improve root-cause quality:

• resolved_library_path
• resolved_library_exists

This gives exact failure/latency location instead of one opaque startup block.

• Improves NDK load diagnostics to split queue_wait_ns, native_load_ns, and caller_blocked_ns, making delays easier to attribute.
• Adds explicit retry reporting for native load (load_retry_attempted, load_retry_succeeded, first/second attempt outcomes).
• Captures original linker error message(s) alongside error class to better diagnose ABI/dependency/ELF/linker issues.
• Enhances library path diagnostics with mapped name, source (nativeLibraryDir vs fallback), confidence (definitive), file existence, and optional size.

[bugsnagbot]

Android notifier sizes

Format	Size impact of Bugsnag (kB)	Size impact of Bugsnag when Minified (kB)
APK	1851.75	1608.66
arm64_v8a	659.71	413.95
armeabi_v7a	598.28	352.52
x86	729.33	483.57
x86_64	704.76	459.0

Generated by 🚫 Danger

[SB-adityap]

Done

[SB-jigneshR]

Blocking as it has specific changes.