feat(bip39): let mnemonic tools select a language

[aeitwoen]

The BIP39 tools recognize Spanish words but label a valid Spanish mnemonic invalid, an unnecessary dead end. Generation, inspection and entropy encoding now accept an explicit language across all ten lists; English stays the default.

[coldtea-pr-lens]

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🟢 +0 new · 🟠 ~4 changed · 🔴 -0 removed · 1 flow · 7 files · commit c6fd815

Architecture

4 components touched across 6 lanes.

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Inside the changed components — 2 views

Component view — Tool interfaces & dispatcher

MCP server and Pi extension schemas routing localized mnemonic operations through the dispatcher

Component view — BIP39 wordlist loader & derivation

Dynamic loading of official BIP39 wordlists and localized mnemonic validation

Data flow

Inspecting a localized BIP39 mnemonic

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Drill down

Client Interfaces — 2 components

🟡 CHANGED MCP Server

Exposes MCP tools over stdio with optional BIP39 language selection.

• src/mcp.ts:1-489

🟡 CHANGED Pi Coding Agent Extension

Integrates key and mnemonic tools with the Pi coding agent interface.

• packages/pi/extensions/keys.ts:1-536

Tool Operations — 1 component

🟡 CHANGED Tool Operations Dispatcher

Dispatches CLI, MCP, and Pi operations for keys and localized BIP39 mnemonics.

• src/tool-operations.ts:1-851
• src/tool-parameters.ts:1-75
• src/tool-schemas.ts:1-72

Derivation ＆ Mnemonics — 1 component

🟡 CHANGED BIP39 Mnemonic Engine

Loads official wordlists on demand and handles BIP39 mnemonic encode and decode.

• src/utils/bip39/index.ts:1-136
• src/utils/bip39/languages.ts:1-24

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