Upload includes trade indexing

[rcholic]

Summary: Trace Index Upload Implementation Complete ✅

1. SDK Implementations

Python SDK :

• Added _upload_index() method that requests upload URL and uploads compressed index
• Integrated into upload flow after trace upload succeeds
• Non-fatal error handling (trace succeeds even if index fails)

TypeScript SDK:

• Added _uploadIndex(), _requestIndexUploadUrl(), and _uploadIndexToCloud() methods
• Same flow as Python: upload index after trace upload
• Graceful error handling with logging

2. Upload Flow

1. Generate trace index (local .index.json file)
2. Upload trace file (.jsonl.gz)
3. Request index upload URL from POST /v1/traces/index_upload ← NEW!
4. Upload index file (.index.json.gz) ← NEW!
5. Call /v1/traces/complete
6. Clean up local files
7. Tests Added

Python: 4 new tests in test_cloud_tracing.py

Index upload success
No API key (skips upload)
Upload failure (non-fatal)
Missing index file (graceful)

TypeScript: 5 new tests

Index upload success
No API key (skips upload)
Upload failure (non-fatal)
Missing index file (graceful)
Gzip compression validation