feat(tool-metadata): add shared metadata contract and bridge

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

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

src/features/tool-metadata-store/index.ts

@@ -5,3 +5,10 @@ export {
   storeToolMetadata,
 } from "./store"
 export type { PendingToolMetadata } from "./store"
+export { resolveToolCallID } from "./resolve-tool-call-id"
+export type { ToolCallIDCarrier } from "./resolve-tool-call-id"
+export { buildTaskMetadataBlock, extractTaskLink, parseTaskMetadataBlock } from "./task-metadata-contract"
+export type { TaskLink } from "./task-metadata-contract"
+export { publishToolMetadata } from "./publish-tool-metadata"
+export { recoverToolMetadata } from "./recover-tool-metadata"
+export type { ToolMetadataPublisherContext } from "./publish-tool-metadata"