Remove binary assets for HF Spaces compatibility

.gitignore

@@ -59,10 +59,10 @@ dashboard/out/
 # Claude Code
 .claude/
 
-# Screenshots (local only — except assets/ which is committed)
+# Screenshots
 Pictures/
+assets/
 *.png
-!assets/*.png
 
 # Misc
 *.log

README.md

@@ -6,17 +6,7 @@ Three specialized AI agents — Security, Performance, and Style — analyze you
 
 ## Screenshots
 
-### PR Review — Bot posts inline findings with Health Score
-![PR Review](assets/pr-review.png)
-
-### Dashboard — Repository overview with health metrics
-![Dashboard Home](assets/dashboard-home.png)
-
-### Repo Detail — Health Score trend, agent breakdown, PR history
-![Repo Detail](assets/repo-detail.png)
-
-### PR Detail — Agent breakdown and findings table
-![PR Detail](assets/pr-detail.png)
+Screenshots available in the [GitHub repository wiki](https://github.com/ninjacode911/Project-Ninja-Code-Guard) — PR review comments, dashboard home, repo detail with health trends, and PR findings table.
 
 ## How It Works