Don't install pi as a direct dependency

If used, it should be available on the host machine

mise.lock

@@ -163,10 +163,6 @@ url = "https://nodejs.org/dist/v25.9.0/node-v25.9.0-darwin-x64.tar.gz"
 checksum = "sha256:929552b8305effac843ba7b4270c437aefb702fc3fbd73fcd1bffd35d4ac284e"
 url = "https://nodejs.org/dist/v25.9.0/node-v25.9.0-win-x64.zip"
 
-[[tools."npm:@mariozechner/pi-coding-agent"]]
-version = "0.71.0"
-backend = "npm:@mariozechner/pi-coding-agent"
-
 [[tools."npm:backlog.md"]]
 version = "1.44.0"
 backend = "npm:backlog.md"

mise.toml

@@ -31,7 +31,6 @@ shellcheck = 'latest'
 fd = 'latest'
 litestream = 'latest'
 "npm:backlog.md" = 'latest'
-"npm:@mariozechner/pi-coding-agent" = 'latest'
 
 [task_config]
 includes = ["scripts"]