fix(gitea-prs): correct reference drift against gitea-mcp v1.7.0

The reference files were last verified against v1.3.0 -- references/sources.md
still said so. PR #106 re-verified the write side only, so three defects had
accumulated on the read/review side. All three reproduced against the deployed
server before being fixed; get_gitea_mcp_server_version reports v1.7.0.

- reviews.md forbade review_comments on the "get" response and directed callers
  to review_scomments, which does not exist. The upstream slim.go typo was
  corrected; a live pull_request_read on PR #106 returns "review_comments":1 and
  no review_scomments key. review_comments is an integer count, not comment
  objects -- distinct from the get_review_comments method. Also fixed in
  pull-requests.md's response-shape list.
- pull_request_review_write grants seven methods; only four were documented.
  reply_comment, resolve_thread, unresolve_thread and the comment_id parameter
  had zero mentions anywhere in the skill. Documented from the schema, in a
  Comment threads section kept outside the numbered review state machine --
  they are not lifecycle states.
- review_id was documented as required for get_review_comments. It is optional;
  omitting it lists every inline comment on the PR. Confirmed behaviourally:
  get_review without it errors, get_review_comments without it returns [].

sources.md now records v1.7.0 as the last-verified version, so the next reader
knows what these files were checked against.

Refs #99

plugins/gitea/.apm/skills/gitea-prs/references/sources.md

@@ -3,7 +3,7 @@
 ## gitea-mcp-repo
 
 - **URL:** https://gitea.com/gitea/gitea-mcp
-- **Description:** Official gitea-mcp repository (v1.3.0) — `operation/*.go` source files documenting all 55 MCP tools, their parameters, and CLI flags. Live tool schemas (`list_pull_requests`, `pull_request_read`, `pull_request_write`, `pull_request_review_write`) were verified directly against the deployed MCP server via `ToolSearch` at authoring time, per this repo's process for resolving schema-vs-docs drift, rather than copied from the derived research doc.
+- **Description:** Official gitea-mcp repository — `operation/*.go` source files documenting the MCP tools, their parameters, and CLI flags. Live tool schemas (`list_pull_requests`, `pull_request_read`, `pull_request_write`, `pull_request_review_write`) are verified directly against the deployed MCP server via `ToolSearch`, per this repo's process for resolving schema-vs-docs drift, rather than copied from the derived research doc. **Last verified against v1.7.0**, as reported by `get_gitea_mcp_server_version`; the files were originally authored against v1.3.0 and the read/review side had drifted by three defects before that re-verification.
 - **Research doc:** plugins/gitea/docs/research/docs/gitea/sources.md
 - **Contributing files:** SKILL.md, references/pull-requests.md, references/reviews.md, references/merging.md
 - **Status:** `extracted`
@@ -11,7 +11,7 @@
 ## gitea-mcp-slim-go
 
 - **URL:** https://gitea.com/gitea/gitea-mcp/raw/branch/main/operation/pull/slim.go
-- **Description:** Slim response shape structs from gitea-mcp source — defines exactly which fields the MCP server returns for PRs and reviews, including the `review_scomments` typo and the PR-response milestone-as-title-string quirk.
+- **Description:** Slim response shape structs from gitea-mcp source — defines exactly which fields the MCP server returns for PRs and reviews, including the PR-response milestone-as-title-string quirk. The `review_scomments` misspelling this file documented at v1.3.0 was corrected upstream; v1.7.0 returns `review_comments`.
 - **Research doc:** plugins/gitea/docs/research/docs/gitea/sources.md
 - **Contributing files:** SKILL.md, references/pull-requests.md, references/reviews.md
 - **Status:** `extracted`