audit fixes: RTK hook, settings unification, graphifyy, statusline

- Add RTK PreToolUse hook (rtk-rewrite.sh) and fix missing config
- Unify settings.json: merge hooks, marketplaces, model into project file
  so link.sh symlink is the single source of truth
- Add statusline: model, folder, git branch, context % progress bar
- Add graphifyy support: detect, install (pipx), lock, doctor, session-start
- Clarify ctx7/ruflo as standalone CLI (not MCP servers)
- Fix install-plugins.sh step numbering (duplicate step 6)
- Add version check in session-start (local vs origin/master)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

settings.json

@@ -197,6 +197,42 @@
           }
         ]
       }
+    ],
+    "PreToolUse": [
+      {
+        "matcher": "Bash",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ~/.claude/hooks/rtk-rewrite.sh"
+          }
+        ]
+      }
     ]
+  },
+  "extraKnownMarketplaces": {
+    "claude-code-plugins": {
+      "source": {
+        "source": "github",
+        "repo": "anthropics/claude-code"
+      }
+    },
+    "superpowers-marketplace": {
+      "source": {
+        "source": "github",
+        "repo": "obra/superpowers-marketplace"
+      }
+    },
+    "ui-ux-pro-max-skill": {
+      "source": {
+        "source": "github",
+        "repo": "nextlevelbuilder/ui-ux-pro-max-skill"
+      }
+    }
+  },
+  "model": "opus",
+  "statusLine": {
+    "type": "command",
+    "command": "bash ~/.claude/hooks/statusline.sh"
   }
 }