v0.44.0 — MCP Apps: Polymarket order card and wallet panel

Two MCP Apps: a Polymarket order card and a wallet panel. Hosts that
implement the MCP Apps extension — Claude Desktop, claude.ai, VS Code,
Cursor, ChatGPT — now render blockrun_polymarket_read previews and
blockrun_wallet results as interactive cards instead of text. The order
card shows the question, outcome, side, best quote in cents, estimated
shares, notional, a per-order cap meter and the session ledger; the amount
is editable and re-quotes through the read-only tool; Place order is a
two-click arm/confirm that asks the host to call blockrun_polymarket with
confirm:true, so the host's own consent prompt and every server cap still
apply, and the result (order id, status, tx) lands back in the card and in
the model's context. The wallet panel shows both chains, switches the active
one, copies an address, shows an EIP-681 / Solana Pay QR, opens the explorer,
and mints the card on-ramp link. Hosts without the extension — Claude Code,
Codex, Gemini CLI, Windsurf — ignore _meta.ui and see exactly the text
they saw before. Bundles are single-file HTML built from apps/ into ui/,
shipped in the tarball, registered only for profiles that expose the tool,
and pinned by test/apps.test.ts. Rendered and screenshotted in the MCPJam
inspector against the published server; docs/mcp-apps.md has the host
table and the money-path explanation.

A bare token_id now resolves to its market. resolveToken returned
only the id, so the card could not name the market and the closed /
accepting-orders guard never ran on that path. Gamma indexes markets by CLOB
token id; the preview asks it best-effort (4 s, spread-safe {} on failure)
and fills question, outcome, conditionId, closed and acceptingOrders. The
preview payload also carries bestQuote, minSize, maxBetUsd and the session
ledger so nothing downstream has to parse prose.