Track: Add Arkade Script / introspector client support (ts-sdk #319 parity)

[arkanaai]

Summary

ts-sdk PR #319 (louisinger) adds full client-side support for ArkLabsHQ/introspector and ArkadeScript. This is a significant new primitive: smart contract spending conditions evaluated by the Arkade introspector, committed to VTXO tapscript leaves.

Reference Implementation

• ts-sdk PR #319: Arkade script support ts-sdk#319
• Introspector repo: https://github.com/ArkLabsHQ/introspector
• ts-sdk implements: ArkadeScript parsing, introspector-compatible script construction, client-side VTXO spending with ArkadeScript leaves

What needs to happen in go-sdk

1. ArkadeScript leaf construction (tapscript)
2. Introspector-compatible output constraint encoding (INSPECTOUTPUTSCRIPTPUBKEY / INSPECTOUTPUTVALUE opcodes)
3. Signing path for ArkadeScript-gated VTXOs
4. Integration with existing VTXO send/settle flows

Owner

@altafan — tagging for awareness. Low urgency until ts-sdk #319 merges, but worth tracking now.

Labels

sdk-parity