fix(typebox): migrate to v1 with extension compat (#3474)

* fix(typebox): migrate to v1 with extension compat

Replace AJV-based validation with TypeBox-native validation, keep legacy extension imports working (including @sinclair/typebox/compiler), and restore coercion for serialized/plain JSON schemas.

This change closes #3112.

* fix(typebox): use canonical imports and harden coercion

Switch first-party code to canonical typebox imports while retaining legacy extension aliases in the loader.

Remove obsolete runtime codegen guards, expand serialized JSON-schema coercion coverage, and update related tests and fixtures.

Fixes #3112.

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Co-authored-by: Mario Zechner <badlogicgames@gmail.com>

packages/coding-agent/package.json

@@ -44,8 +44,7 @@
 		"@mariozechner/pi-ai": "^0.68.1",
 		"@mariozechner/pi-tui": "^0.68.1",
 		"@silvia-odwyer/photon-node": "^0.3.4",
-		"@sinclair/typebox": "^0.34.41",
-		"ajv": "^8.17.1",
+		"typebox": "^1.1.24",
 		"chalk": "^5.5.0",
 		"cli-highlight": "^2.1.11",
 		"diff": "^8.0.2",