fix(signet): default to the public esplora indexer (#18)

DEFAULT_INDEXER_URL -> https://esplora.signet.kaleidoswap.com. RLN 0.7.0
/ rgb-lib auto-detect Esplora from the https:// scheme. Reword the
--indexer-url help/prompt to note both Esplora (https://) and Electrum
(host:port) forms are accepted.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: bitwalt

kaleido_cli/commands/node.py

@@ -632,7 +632,10 @@ def node_unlock(
     ] = DEFAULT_BITCOIND_RPC_PORT,
     indexer_url: Annotated[
         str,
-        typer.Option("--indexer-url", help="Electrs indexer URL."),
+        typer.Option(
+            "--indexer-url",
+            help="Indexer URL — Esplora (https://…) or Electrum (host:port).",
+        ),
     ] = DEFAULT_INDEXER_URL,
     proxy_endpoint: Annotated[
         str,
@@ -680,7 +683,9 @@ def node_unlock(
             )
             bitcoind_host = typer.prompt("bitcoind RPC host", default=bitcoind_host)
             bitcoind_port = typer.prompt("bitcoind RPC port", default=bitcoind_port, type=int)
-            indexer_url = typer.prompt("Electrs indexer URL", default=indexer_url)
+            indexer_url = typer.prompt(
+                "Indexer URL (Esplora https:// or Electrum host:port)", default=indexer_url
+            )
             proxy_endpoint = typer.prompt("RGB proxy endpoint", default=proxy_endpoint)
         raw = typer.prompt("[OPTIONAL] Lightning announce alias (Enter to skip)", default="")
         if raw.strip():

kaleido_cli/config.py

@@ -20,7 +20,7 @@
 DEFAULT_BITCOIND_RPC_PASSWORD = "default_password"
 DEFAULT_BITCOIND_RPC_HOST = "bitcoind.signet.kaleidoswap.com"
 DEFAULT_BITCOIND_RPC_PORT = 38332
-DEFAULT_INDEXER_URL = "electrum.signet.kaleidoswap.com:60601"
+DEFAULT_INDEXER_URL = "https://esplora.signet.kaleidoswap.com"
 DEFAULT_PROXY_ENDPOINT = "rpcs://proxy.iriswallet.com/0.2/json-rpc"
 
 DEFAULT_REGTEST_BITCOIND_RPC_USERNAME = "user"