Covers get_file_contents, get_dir_contents, get_repository_tree,
create_or_update_file, delete_file — all verified working with the
current write:issue/write:repository token scope.
Cross-cutting skill for label and milestone operations, composed by
gitea-issues and gitea-prs. Includes the label inference guide deferred
from issue #6 comment #848.
Adds plugins/gitea/skills/gitea-branches/ per ADR 0011, covering
list_branches/create_branch/delete_branch (migrated from the flat
plugins/bin/skills/gitea/ dispatch) plus list_commits/get_commit (new
read-only commit-history domain). Call signatures were re-verified live
via ToolSearch against the deployed gitea-mcp server rather than copied
from api-reference.md, per issue #6 comment #849's root-cause fix.
Bumps the gitea plugin to 1.1.0 in both manifests for the new skill.
