Add pi.dev configuration

Requires `DEEPSEEK_API_TOKEN` env variable

.pi/npm/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

.pi/settings.json

@@ -0,0 +1,8 @@
+{
+  "skills": [
+    "../.claude/skills"
+  ],
+  "packages": [
+    "npm:pi-mcp-adapter"
+  ]
+}

mise.toml

@@ -28,6 +28,7 @@ shellcheck = 'latest'
 fd = 'latest'
 litestream = 'latest'
 "npm:backlog.md" = 'latest'
+"npm:@mariozechner/pi-coding-agent" = 'latest'
 
 [task_config]
 includes = ["scripts"]