Integrate TypeScript SDK into CI pipeline with comparison tests

[mudigal]

Adds automated testing for the TypeScript SDK and sets up one-command releases to crates.io and npm.

Closes #210

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What's New

🧪 CI Testing (Part 1)

Two new test scripts:

1. TypeScript SDK Test (sdk_store_big_data.js)

   • Uploads a 64MB file using the SDK
   • Measures performance (speed, chunks, retrieval time)
   • Validates data via IPFS

2. 3-Way Comparison Test (compare_clients.js)

   • Runs the same test with PAPI, Rust SDK, and TypeScript SDK
   • Shows which is fastest
   • Confirms all three work identically

Both tests now run automatically in CI for Westend and Polkadot.

📦 Release Automation (Part 2)

One tag → full release:

./scripts/bump-sdk-version.sh 0.2.0                                                                                                                                                                                 
git tag sdk-v0.2.0 && git push --tags                                                                                                                                                                               
                                                                                                                                                                                                                    
This automatically:                                                                                                                                                                                                 
- ✅ Validates versions match                                                                                                                                                                                       
- ✅ Runs all tests                                                                                                                                                                                                 
- ✅ Publishes to crates.io                                                                                                                                                                                         
- ✅ Publishes to npm                                                                                                                                                                                               
- ✅ Creates GitHub Release with notes                                                                                                                                                                              
                                                                                                                                                                                                                    
Setup Required:                                                                                                                                                                                                     
Add these secrets to the repository:                                                                                                                                                                                
- CARGO_REGISTRY_TOKEN (get from crates.io)                                                                                                                                                                         
- NPM_TOKEN (get from npmjs.com)                                                                                                                                                                                    
                                                                                                                                                                                                                    
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Files Changed                                                                                                                                                                                                       
                                                                                                                                                                                                                    
Created                                                                                                                                                                                                             
                                                                                                                                                                                                                    
- .github/workflows/release-sdk.yml - Release workflow                                                                                                                                                              
- scripts/bump-sdk-version.sh - Version bump script                                                                                                                                                                 
- examples/sdk_store_big_data.js - TypeScript SDK test                                                                                                                                                              
- examples/compare_clients.js - Comparison test                                                                                                                                                                     
- RELEASING.md - Release guide                                                                                                                                                                                      
- sdk/RELEASE_CHECKLIST.md - Quick reference                                                                                                                                                                        
                                                                                                                                                                                                                    
Modified                                                                                                                                                                                                            
                                                                                                                                                                                                                    
- .github/workflows/integration-test.yml - Added SDK tests                                                                                                                                                          
- examples/justfile - Added test recipes                                                                                                                                                                            
- sdk/rust/Cargo.toml - Added crates.io metadata                                                                                                                                                                    
- sdk/typescript/package.json - Added safety checks                                                                                                                                                                 
                                                                                                                                                                                                                    
---                                                                                                                                                                                                                 
Try It                                                                                                                                                                                                              
                                                                                                                                                                                                                    
Run tests locally:                                                                                                                                                                                                  
cd examples                                                                                                                                                                                                         
TEST_DIR=$(mktemp -d)                                                                                                                                                                                               
just start-services "$TEST_DIR" bulletin-polkadot-runtime                                                                                                                                                           
just run-test-sdk-store-big-data "$TEST_DIR"                                                                                                                                                                        
just run-test-compare-clients "$TEST_DIR"                                                                                                                                                                           
just stop-services "$TEST_DIR"                                                                                                                                                                                      
                                                                                                                                                                                                                    
Test release (dry-run):                                                                                                                                                                                             
- Go to Actions → Release SDK → Run workflow                                                                                                                                                                        
- Set version: 0.2.0, dry_run: true                                                                                                                                                                                 
                                                                                                                                                                                                                    
---                                                                                                                                                                                                                 
Documentation                                                                                                                                                                                                       
                                                                                                                                                                                                                    
Full details in:                                                                                                                                                                                                    
- ../RELEASING.md - Complete release guide                                                                                                                                                                          
- ../examples/SDK_CI_INTEGRATION.md - CI setup details                                                                                                                                                              
                                                                                                                                                                                                                    
This version is:                                                                                                                                                                                                    
- **70% shorter** (from ~2000 words to ~400 words)                                                                                                                                                                  
- **Easier to scan** with clear sections and bullet points                                                                                                                                                          
- **Action-oriented** with "Try It" section                                                                                                                                                                         
- **No redundant information**                                                                                                                                                                                      
- **Preserves all key details** while being much more readable