fix(sdk): centralize mainnet and testnet bootstrap builders

[Copilot]

The SDK still left SdkBuilder::new_mainnet() / new_testnet() unimplemented, while WASM and FFI maintained separate hardcoded Platform gateway lists. This change makes dash-sdk the single bootstrap source for mainnet/testnet construction and routes dependent layers through it.

• Shared SDK bootstrap

  • Implement SdkBuilder::new_mainnet() and SdkBuilder::new_testnet() in packages/rs-sdk/src/sdk.rs
  • Move the default mainnet/testnet DAPI address lists into dash-sdk
  • Normalize default address parsing in one place via parse_address_list() / default_address_list_for_network()
  • Improve panic diagnostics for invalid baked-in addresses

• Consumer cleanup

  • Update packages/wasm-sdk/src/sdk.rs to call SdkBuilder::new_mainnet() / SdkBuilder::new_testnet() instead of carrying its own gateway lists
  • Update trusted fallback creation in packages/rs-sdk-ffi/src/sdk.rs to use the shared SDK constructors instead of rebuilding address lists locally

• Coverage

  • Add focused unit tests in packages/rs-sdk/src/sdk.rs asserting that:
    • new_mainnet() sets Network::Mainnet and the expected bootstrap set
    • new_testnet() sets Network::Testnet and the expected bootstrap set

let mainnet = SdkBuilder::new_mainnet();
let testnet = SdkBuilder::new_testnet();

// dependent layers now delegate instead of duplicating address lists
let wasm_builder = SdkBuilder::new_testnet().with_context_provider(WasmContext {});

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.google.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https s-a90a27f5881aed-m64 s-a90a27f5881aed/tmp/rustctk7pgV/symbols.o "ffi-testing", "jni", "once_cell")) s-a9�� s-a90a27f5881aed-Wl,--as-needed s-a90a27f5881aed-Wl,-Bstatic n/rustc s-a90a27f5881aedgit s-a90a27f5881aedpush s-a90a27f5881aed-v n/rustc s-a9�� s-a90a27f5881aed/home/REDACTED/.rustup/toolchains/1.92-x86_64-REDACTED-linux-gnu/lib/rustlib/x86_64cargo-fmt s-a90a27f5881aed/home/REDACTED/.rustup/toolchains/1.92-x86_64-REDACTED-linux-gnu/lib/rustlib/x86_64fmt f/ureq-3.3.0/src/lib.rs /index.crates.iodebian-sa1 /index.crates.io1 /index.crates.io1 -1949cf8c6b5b557/home/REDACTED/.rustup/toolchains/1.92-x86_64-REDACTED-linux-gnu/lib/rustlib/x86_64-REDACTED-linux-gnu/lib/libadler2-1e0b0d62df36c85c.rlib (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[Claudius-Maginificent]

Superseded by #3533 — same structure (centralize into SdkBuilder::new_mainnet() / new_testnet(), delegate from wasm-sdk and rs-sdk-ffi), but built on top of #3532 and with the baked-in IPs replaced by a dynamic query against dash_network_seeds::evo_seeds(network) — the weekly-refreshed single source of truth that rust-dashcore v0.42-dev ships. Thanks for the draft, Copilot — your two commits are cherry-picked verbatim with authorship preserved. Closing this one.

_{🤖 Co-authored by Claudius the Magnificent AI Agent}