fix(gitea): fill provenance gap in gitea-branches sources.md

The gitea-branches skill was authored before the context7 research
backfill (workflow-conventions.md) landed on this branch, so its
sources.md was missing context7-websites-gitea and
context7-gitea-tea-cli — both present with status `extracted` in the
upstream research doc, which validate-provenance.sh requires every
consuming skill to account for. Adds context7-websites-gitea (credited
for the protected-branch gotcha) and context7-gitea-tea-cli (marked
`(none)` — its release/tag content is out of scope for branches/commits).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

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

@@ -21,6 +21,7 @@ metadata:
   source_keys:
     - gitea-mcp-repo
     - gitea-mcp-slim-go
+    - context7-websites-gitea
 
 allowed-tools: Bash mcp__gitea__list_branches mcp__gitea__create_branch mcp__gitea__delete_branch mcp__gitea__list_commits mcp__gitea__get_commit
 ---

plugins/gitea/skills/gitea-branches/references/sources.md

@@ -23,3 +23,19 @@ parameter lists themselves.
 - **Research doc:** plugins/gitea/docs/research/docs/gitea/sources.md
 - **Contributing files:** references/branches.md, references/commits.md
 - **Status:** `extracted`
+
+## context7-websites-gitea
+
+- **URL:** context7:/websites/gitea
+- **Description:** Official Gitea docs mirror on Context7 — informed the protected-branch gotcha in SKILL.md (protected branches can block server-side operations regardless of client-side checks; admins aren't exempt by default).
+- **Research doc:** plugins/gitea/docs/research/docs/gitea/sources.md
+- **Contributing files:** SKILL.md
+- **Status:** `extracted`
+
+## context7-gitea-tea-cli
+
+- **URL:** context7:/git_gitea_com/gitea_tea
+- **Description:** Official `tea` CLI docs on Context7 — practitioner conventions for issues, PRs, and releases (semver tags, draft/prerelease flags). Consulted as part of the shared research pass but its content is scoped to releases/tags, out of scope for branches/commits — no content from it was used in this skill.
+- **Research doc:** plugins/gitea/docs/research/docs/gitea/sources.md
+- **Contributing files:** (none)
+- **Status:** `extracted`