Export function loads ALL data into memory at once

[rohitg00]

Problem

Export loads all sessions, all memories, all summaries, all observations, all graph nodes/edges, all semantic/procedural memories into a single JSON object. For large stores, this will cause memory spikes.

Location

src/functions/export-import.ts:19-88

Suggested Fix

Use streaming JSON serialization for large exports.

[rohitg00]

Resolved in PR #77. Export supports pagination (maxSessions/offset), defaults to full export. Parallel KV fetches.