chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/biome.json

@@ -25,17 +25,20 @@
 	},
 	"files": {
 		"includes": [
+			"scripts/model-catalog-protocol.ts",
+			"scripts/model-catalog-protocol.test.ts",
 			"packages/*/src/**/*.ts",
 			"packages/*/test/**/*.ts",
-			"packages/session-backends/*/src/**/*.ts",
-			"packages/session-backends/*/test/**/*.ts",
 			"packages/coding-agent/examples/**/*.ts",
+			"packages/agent/examples/**/*.ts",
 			"!**/node_modules/**/*",
 			"!**/test-sessions.ts",
 			"!**/models.generated.ts",
 			"!**/*.models.ts",
 			"!packages/mom/data/**/*",
-			"!!**/node_modules"
+			"!!**/node_modules",
+			"!!apps"
 		]
-	}
+	},
+	"plugins": ["./scripts/biome/model-type-comparison.grit"]
 }