refactor(model-core): inject bundled capabilities snapshot from harness

- remove bundled snapshot dependency on src/generated in model-core

- make shared harness provide runtime bundled snapshot

- update guardrail and capability tests to pass explicit snapshot

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

packages/model-core/src/model-capabilities/bundled-snapshot.ts

@@ -1,24 +1,14 @@
-import bundledModelCapabilitiesSnapshotJson from "../../../../src/generated/model-capabilities.generated.json"
-
 import { SUPPLEMENTAL_MODEL_CAPABILITIES } from "./supplemental-entries"
 import type { ModelCapabilitiesSnapshot } from "./types"
 
-function normalizeSnapshot(
-	snapshot: ModelCapabilitiesSnapshot | typeof bundledModelCapabilitiesSnapshotJson,
+export function getBundledModelCapabilitiesSnapshot(
+	snapshotJson: ModelCapabilitiesSnapshot,
 ): ModelCapabilitiesSnapshot {
-	return snapshot as ModelCapabilitiesSnapshot
-}
-
-const normalizedBundledSnapshot = normalizeSnapshot(bundledModelCapabilitiesSnapshotJson)
-
-const bundledModelCapabilitiesSnapshot: ModelCapabilitiesSnapshot = {
-	...normalizedBundledSnapshot,
-	models: {
-		...normalizedBundledSnapshot.models,
-		...SUPPLEMENTAL_MODEL_CAPABILITIES,
-	},
-}
-
-export function getBundledModelCapabilitiesSnapshot(): ModelCapabilitiesSnapshot {
-	return bundledModelCapabilitiesSnapshot
+	return {
+		...snapshotJson,
+		models: {
+			...snapshotJson.models,
+			...SUPPLEMENTAL_MODEL_CAPABILITIES,
+		},
+	}
 }