Surface SDK auth warnings for revoked/deleted API keys

[manas-fortifyroot]

Summary

• Added FortifyRoot OTLP exporter wrappers for traces, metrics, and logs.
• Detects HTTP 401/403 and gRPC UNAUTHENTICATED/PERMISSION_DENIED.
• Emits clear FortifyRoot SDK auth warning messages for invalid, revoked, deleted, or permission-missing SDK API keys.
• Dedupes warnings by signal/status/endpoint with TTL to avoid retry spam.
• Prevents SDK auth-warning logs from being re-exported through the OTLP log pipeline.
• Fixed HTTP-vs-gRPC endpoint detection in metrics/logging to use URL scheme parsing.
• Added FortifyRoot-owned tests for HTTP, gRPC, endpoint-aware dedupe, mock collector integration, and logging-handler filtering.

Tests

• uv run ruff check traceloop/sdk/exporters/auth_warnings.py traceloop/sdk/logging/logging.py tests/test_fortifyroot_auth_warnings.py
• uv run pytest tests/test_fortifyroot_auth_warnings.py tests/test_sdk_initialization.py -q
• ./scripts/run-tests.sh --package 'traceloop-sdk'