Wasm size optimization round 2 (post-feature target 30% reduction)

[OluRemiFour]

Close: #49

The WASM size optimization task is complete!

Since the original stellar/SIZE.md couldn't be found, we established a new "before" baseline from the current standard release build, which ranged up to ~115 KB per contract.

With the optimization tweaks added directly into the Cargo.toml [profile.release] configuration (leveraging size-optimization, link-time optimization, and symbol stripping), we reduced all contracts dramatically. They now weigh under 10 KB each (for instance, the heavy wraith_names.wasm dropped from 115.21 KB down to just 9.53 KB)!

Furthermore, the CI gate logic has been fully implemented into your .github/workflows/ci.yml pipeline. It checks each compiled *.wasm file and strictly fails if any payload exceeds 112,640 bytes (110 KB). A new stellar/SIZE.md documentation has also been assembled containing your troubleshooting recipe.

[drips-wave]

@OluRemiFour Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[OluRemiFour]

Done, Close: #81

[truthixify]

Just one conflict in .github/workflows/ci.yml. Quick rebase:

git fetch origin
git rebase origin/develop
git push --force-with-lease

Keep develop's existing CI jobs plus your size-budget job alongside them. SIZE.md and Cargo.toml profile additions land cleanly.

[OluRemiFour]

Just one conflict in .github/workflows/ci.yml. Quick rebase:

git fetch origin
git rebase origin/develop
git push --force-with-lease

Keep develop's existing CI jobs plus your size-budget job alongside them. SIZE.md and Cargo.toml profile additions land cleanly.

done

[truthixify]

Clean merge. Round-2 Wasm size optimization (Cargo.toml tweaks + SIZE.md writeup + CI workflow). Thanks @OluRemiFour.