Drop the Comp AI CRM acknowledgement

Nothing in PIG derives from that repository. The fact model, the leased
agent task queue and the `agentBrief` field are our own designs, and MIT's
attribution condition reaches copied source, not ideas — so the credit was
a courtesy that misstated where this code came from.

The one line worth keeping was never a credit: AGENTS.md's rule against
lifting component files out of somebody else's repo. It is restated
generically, and the shadcn-from-upstream guidance stays.

Buzz keeps its NOTICE entry.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

AGENTS.md

@@ -303,9 +303,9 @@ agent for it.
 
 ## 8. What not to do
 
-- Do not copy component files from `trycompai/crm`. Most are shadcn/ui
-  originals — take them from upstream where they are canonical. Borrow the
-  compositions as ideas; the debt is credited in `NOTICE`.
+- Do not copy component files out of other people's repositories. Where a
+  primitive is a shadcn/ui original, take it from upstream, where it is
+  canonical and current. Compositions we write ourselves.
 - Do not open self-registration on the identity provider. It is shared with
   another application. PIG mints accounts itself, gated on an invite.
 - Do not put a production SSH key on the CI runner. Deployment is manual on