chore: gitignore .liquid-mail.toml and remove from tracking

The file contains a Honcho API key that should not be in version control.
Added to .gitignore and untracked; the file remains on disk for local use.

.gitignore

@@ -31,6 +31,7 @@ yarn-error.log*
 
 # Local config files
 lore.config.json
+.liquid-mail.toml
 
 # beads
 .bv/

.liquid-mail.toml

@@ -1,13 +0,0 @@
-# Liquid Mail config (TOML)
-#
-# Prefer env vars for secrets:
-#   LIQUID_MAIL_HONCHO_API_KEY
-#   LIQUID_MAIL_HONCHO_WORKSPACE_ID
-#
-[honcho]
-api_key = "hch-v3-pmx23gk9k60xlqffpxpyjj8pywnxkpjkic9bdygx21iydvyxbeialioz5ehhcp1r"
-# workspace_id is optional.
-# If omitted, Liquid Mail defaults it to the repo name (git root folder name).
-# Honcho uses get-or-create semantics for workspaces, so it will be created on first use.
-# workspace_id = "my-repo"
-base_url = "https://api.honcho.dev"