chore: Sync CLI with list quotes endpoint removal (#323)

## Summary

- Removed `quotes list` CLI command since `GET /quotes` endpoint was
removed in #321
- Cleaned up unused `PaginatedResponse` import in quotes.ts

## Additional updates needed

The following files in `.claude/skills/` also reference the removed
endpoint but require manual updates due to permission restrictions:

1. **`.claude/skills/grid-api/references/endpoints.md`** (line 77)
   - Remove: `| GET | `/quotes` | List quotes (paginated) |`

2. **`.claude/skills/grid-api/SKILL.md`** (lines 327-329)
   - Remove the "List quotes" curl example

## Test plan

- [x] CLI compiles (note: pre-existing TypeScript config issues exist)
- [x] Verified removed command aligned with OpenAPI spec changes in #321

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: 3 people

cli/src/commands/quotes.ts

@@ -1,5 +1,5 @@
 import { Command } from "commander";
-import { GridClient, PaginatedResponse } from "../client";
+import { GridClient } from "../client";
 import { outputResponse, formatError, output } from "../output";
 import { GlobalOptions } from "../index";
 import {
@@ -49,40 +49,6 @@ export function registerQuotesCommand(
     .command("quotes")
     .description("Quote management commands");
 
-  quotesCmd
-    .command("list")
-    .description("List transfer quotes")
-    .option("-l, --limit <number>", "Maximum results (default 20, max 100)", "20")
-    .option("--cursor <cursor>", "Pagination cursor")
-    .option("--customer-id <id>", "Filter by sending customer ID")
-    .option("--sending-account <id>", "Filter by sending account ID")
-    .option("--receiving-account <id>", "Filter by receiving account ID")
-    .option("--sending-uma <address>", "Filter by sending UMA address")
-    .option("--receiving-uma <address>", "Filter by receiving UMA address")
-    .option("--status <status>", "Filter by status (PENDING, PROCESSING, COMPLETED, FAILED, EXPIRED)")
-    .action(async (options) => {
-      const opts = program.opts<GlobalOptions>();
-      const client = getClient(opts);
-      if (!client) return;
-
-      const params: Record<string, string | number | undefined> = {
-        limit: parseInt(options.limit, 10),
-        cursor: options.cursor,
-        customerId: options.customerId,
-        sendingAccountId: options.sendingAccount,
-        receivingAccountId: options.receivingAccount,
-        sendingUmaAddress: options.sendingUma,
-        receivingUmaAddress: options.receivingUma,
-        status: options.status,
-      };
-
-      const response = await client.get<PaginatedResponse<Quote>>(
-        "/quotes",
-        params
-      );
-      outputResponse(response);
-    });
-
   quotesCmd
     .command("get <quoteId>")
     .description("Get quote details")