memorize

Mechanism-level write path for a remindb MCP server. Two ways to persist memory by content shape — structural/multi-part content as a source file under $REMINDB_SOURCE (compile plane → parsed node tree), a single text update via MemoryWrite (flat node, no parsing) — plus MemorySummarize/MemoryForget/MemoryRollback/MemoryPin/MemoryRelate. Use when already driving remindb write tools; broad "save this / note to self /…