Skip tag creation for UUIDs, localnames and hostname

[javuto]

Implementation of #736 to skip automatic tag creation for UUIDs, localnames and hostnames.

[Copilot]

Pull Request Overview

This PR removes automatic tag creation for UUIDs, localnames, and hostnames, and surfaces a count of tagged nodes in the admin UI.

• Stop generating/handling tag types: uuid, localname, hostname (decorators, parsers, custom setters, CLI options, tests).
• Adjust auto-tagging to only use environment and platform.
• Add tagged-nodes count to the Tags page, including a new TagCounter type and CountTaggedNodes method.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pkg/tags/utils_test.go	Updates tests to align with removed tag types (uuid, localname).
pkg/tags/utils.go	Removes constants and switch cases for uuid/localname/hostname across helpers.
pkg/tags/tags.go	Adds TagCounter and CountTaggedNodes; fixes GetTaggedNodes query; limits AutoTagNode to env+platform.
cmd/cli/node.go	Removes CLI tag-type options for uuid, localname, hostname.
cmd/admin/templates/tags.html	Adds “Tagged Nodes” column; removes uuid/localname/hostname tag type options.
cmd/admin/handlers/types-templates.go	Adds CounterTags to template data.
cmd/admin/handlers/templates.go	Wires CountTaggedNodes into TagsGETHandler.

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[zhuoyuan-liu]

Great change! I think the documentation for tag cleanup is the only missing part.

[javuto]

To cleanup tags for UUID, Localname and Hostname use the following SQL queries:

-- Delete tagged nodes
DELETE FROM tagged_nodes WHERE admin_tag_id IN (
   SELECT id FROM admin_tags WHERE tag_type IN (1, 3, 7)
);

-- Delete tags
DELETE FROM admin_tags WHERE tag_type IN (1, 3, 7);

[javuto]

@zhuoyuan-liu ready the the review, thanks!

[zhuoyuan-liu]

Nice work! LGTM.