- Add mount management UI to all frontends (anvillm TUI, Assist, anvilwebgw, anvillm.el)
- Mount commands default to directory basename if name not specified
- Server validates directory exists before mounting
- Umount accepts either mount name or cwd path
- Fix server bug: all beads operations now use mount-specific store
- Remove currentMount global - all operations require explicit mount parameter
- Each Tasks window tracks its own windowMount independently
- Bead detail windows receive mount from parent window
- When no mounts exist, show instructions to mount a project
- When unmounting current mount, switch to first available or show empty state
- Mount validation: Select command checks mount exists before switching
- Database path: ~/.beads/<cwd-hyphenated> to prevent cross-contamination