fix(pi): repoint install_url to @earendil-works/pi-coding-agent (#3169)

The @mariozechner/pi-coding-agent npm package is deprecated in favor of
@earendil-works/pi-coding-agent. Pi Coding Agent is still active under the
new org, so update the install_url rather than removing the integration.

Assisted-by: GitHub Copilot (model: Claude Opus 4.8, autonomous)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: BenBtg

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 <!-- insert new changelog below this comment -->
 
+- fix(pi): repoint install_url to @earendil-works/pi-coding-agent (#3169)
+
 ## [0.11.9] - 2026-06-26
 
 ### Changed

src/specify_cli/integrations/pi/__init__.py

@@ -9,7 +9,7 @@ class PiIntegration(MarkdownIntegration):
         "name": "Pi Coding Agent",
         "folder": ".pi/",
         "commands_subdir": "prompts",
-        "install_url": "https://www.npmjs.com/package/@mariozechner/pi-coding-agent",
+        "install_url": "https://www.npmjs.com/package/@earendil-works/pi-coding-agent",
         "requires_cli": True,
     }
     registrar_config = {