fix(gitea): correct token-scope claim in gitea-branches docs

SKILL.md, README.md, and references/{branches,commits}.md claimed
list_branches, list_commits, and get_commit "work with write:issue
alone." This contradicted docs/research/docs/gitea/overview.md, which
documents write:repository as gating both reads and writes for
repo-scoped tool families (Gitea hides these reads behind write
scope). The prior empirical justification was invalid: it tested under
a token holding both write:issue and write:repository simultaneously,
which doesn't isolate which scope actually enabled the reads.

Corrected all four files to state that list_branches, create_branch,
and delete_branch require write:repository, confirmed directly by
overview.md's scope enumeration. list_commits/get_commit are flagged
as inferred to need the same scope by analogy rather than an
overview.md-confirmed fact, since overview.md's write:repository
enumeration names PR/branch/file/release/tag but not commits — this
distinction surfaced during an independent audit pass and is now
called out explicitly so the claim isn't overstated.

Bumped SKILL.md metadata.version 0.1.0 -> 0.1.1 (patch: doc
correction, no behavior change).

plugins/gitea/skills/gitea-branches/SKILL.md

@@ -13,11 +13,11 @@ description: >
   git-history) or for PR-side branch references like cross-repo fork PR heads
   (use gitea-prs).
 
-compatibility: Requires Gitea MCP server configured with a token; list_branches, list_commits, and get_commit work with write:issue alone, create_branch and delete_branch require write:repository. Requires git remote "origin" pointing to the Gitea instance.
+compatibility: Requires Gitea MCP server configured with a token with write:repository scope; this is confirmed to gate list_branches, create_branch, and delete_branch (Gitea gates reads behind write scope for repo-scoped operations), and is inferred by analogy (not explicitly confirmed by source docs) to also gate list_commits and get_commit. Requires git remote "origin" pointing to the Gitea instance.
 
 metadata:
   category: integration
-  version: "0.1.0"
+  version: "0.1.1"
   source_keys:
     - gitea-mcp-repo
     - gitea-mcp-slim-go