feat: inline COMMENT-state PR review (findings anchored to changed lines) (#18)

Co-authored-by: Steve Dudenhoeffer <steve@stevedudenhoeffer.com>
Co-committed-by: Steve Dudenhoeffer <steve@stevedudenhoeffer.com>

README.md

@@ -306,6 +306,14 @@ back to posting the per-model comments. Controlled by `GADFLY_CONSOLIDATE`: `aut
 for ≥2 models), `1` (force on), `0` (force off, one comment per model). Single-model runs are
 unaffected.
 
+**Inline PR review.** Alongside the consensus comment, Gadfly also posts a single Gitea **pull
+review** (state `COMMENT` — advisory, **never** request-changes or approve, so it can't block a
+merge) whose inline comments anchor each consensus finding to the exact changed line it's about.
+Only findings that land on a line in the diff are anchored (Gitea rejects comments off the diff);
+the rest stay in the consensus comment. A re-run replaces the previous review instead of stacking.
+It's the "reviewer integrated with Gitea" without the blocking — turn it off with
+`GADFLY_INLINE_REVIEW=0`.
+
 ### Triggers
 
 1. A **new/reopened/ready** non-draft PR — automatic.
@@ -392,6 +400,7 @@ The reviewer binary reads these (the stub/entrypoint set sane defaults):
 | `GADFLY_STATUS_BOARD` | on | set `0` to disable the live status-board comment |
 | `GADFLY_STATUS_POLL_SECS` | 12 | how often the status board re-renders/upserts |
 | `GADFLY_CONSOLIDATE` | `auto` | cross-model consensus comment: `auto` (on for ≥2 models), `1` (force on), `0` (off — one comment per model) |
+| `GADFLY_INLINE_REVIEW` | on | when consolidating, also post a `COMMENT`-state PR review with inline comments on changed lines; `0` disables |
 | `GADFLY_TRIGGER_PHRASE` | `@gadfly review` | comment phrase that re-triggers |
 | `GADFLY_ALLOWED_USERS` | *(collaborators)* | comma-separated allow-list for comment triggers |
 | `GADFLY_FINDINGS_URL` | — | gadfly-reports store base URL; set to enable findings telemetry (off when empty) |