Feature: Bulk tag management (delete, merge, search-by-tag)

[bwl]

Use Case

Managing tags at scale requires bulk operations. Currently:

• No forest tags delete <tag> — have to find every node and remove one-by-one
• No tag-based search in remote mode (metadata search is local-only)
• forest tags rename exists but forest tags delete does not

We just did a 220-tag cleanup that required exporting all nodes, regex-parsing, and individually removing tags from 125 nodes. This should be a single command.

Current Workaround

Export JSON, parse with scripts, call forest tags remove <node> <tag> in a loop. Fragile and slow.

Proposed Solution

• forest tags delete <tag> — remove a tag from ALL nodes that have it
• forest tags search <tag> — list all nodes with a given tag (works remotely)
• forest tags merge <old> <new> — rename + deduplicate (rename exists, merge handles conflicts)
• forest search --tags <tag> working in remote mode (metadata search over API)

Context

• Forest node: d653 (roadmap)
• Motivated by: tag cleanup session where 125 node-tag pairs had to be removed individually