Obsidian bridge plugin for DSH

Key features

• Vault tools, available without Obsidian
• src/index.tsoptional alpha.2 settings service wiring, runtime lifecycle, skill facade, and per-agent activation.
• Optional SQLite session persistence uses schema 20.
• obsidian_status · obsidian_list · obsidian_stat · obsidian_read · obsidian_write · obsidian_edit · obsidian_append · obsidian_mkdir · obsidian_copy · obsidian_move · obsidian_delete
• The filesystem layer uses vault-relative paths, canonical realpath containment, protected dot directories, atomic writes, serialized appends, SHA-256 revisions, optimistic if_match conflicts, binary size limits, cancellation, and internal trash by default.