feat: Excalidraw + Banner plugins + ITS CSS snippets

Plugins installed:
  obsidian-excalidraw-plugin
    manifest.json + styles.css tracked in git
    main.js (8MB) excluded from git — downloaded by setup-vault.sh on first run
  obsidian-banners
    manifest.json + main.js + styles.css all tracked (148KB, acceptable)

CSS Snippets (ITS Theme by SlRvb):
  ITS-Dataview-Cards.css  — transforms TABLE queries into visual card grids
    Usage: use backtick-dataview-cards instead of backtick-dataview above query
  ITS-Image-Adjustments.css — fine-grained image sizing in notes
    Usage: caption images with |100 or wrap in image-adjustments callout

Config updates:
  community-plugins.json — added obsidian-excalidraw-plugin, obsidian-banners
  appearance.json        — added ITS-Dataview-Cards + ITS-Image-Adjustments snippets
                           (vault-colors preserved)
  .gitignore             — added excalidraw main.js exclusion rule

setup-vault.sh — step 5: auto-downloads Excalidraw main.js if missing
  curl from GitHub releases/latest, skips if already present

Canvas updates (Obsidian saved state):
  welcome.canvas — user added Cosmic Brain GIF at top
  main.canvas    — user added brand assets to Wiki Pages zone
  Wiki Map.canvas — Obsidian format normalised

.obsidian/workspace.json

@@ -7,36 +7,42 @@
         "id": "477f1cf965ca606e",
         "type": "tabs",
         "children": [
-          {
-            "id": "welcome-canvas-leaf",
-            "type": "leaf",
-            "state": {
-              "type": "canvas",
-              "state": {
-                "file": "wiki/canvases/welcome.canvas"
-              },
-              "icon": "lucide-layout-dashboard",
-              "title": "Welcome"
-            }
-          },
           {
             "id": "a31de1b302cdc5cf",
             "type": "leaf",
             "state": {
               "type": "canvas",
               "state": {
-                "file": "wiki/canvases/main.canvas",
+                "file": "wiki/canvases/welcome.canvas",
                 "viewState": {
-                  "x": 100,
-                  "y": 831.5792810365207,
-                  "zoom": -0.8266666666666667
+                  "x": 139.04404736265246,
+                  "y": -173.70869224745502,
+                  "zoom": -0.5671535636366716
                 }
               },
               "icon": "lucide-layout-dashboard",
-              "title": "main"
+              "title": "welcome"
+            }
+          },
+          {
+            "id": "0dbc366fea2d4524",
+            "type": "leaf",
+            "state": {
+              "type": "canvas",
+              "state": {
+                "file": "wiki/canvases/welcome.canvas",
+                "viewState": {
+                  "x": -185.72849200214785,
+                  "y": -112.21661228352869,
+                  "zoom": -0.060486896970004776
+                }
+              },
+              "icon": "lucide-layout-dashboard",
+              "title": "welcome"
             }
           }
-        ]
+        ],
+        "currentTab": 1
       }
     ],
     "direction": "vertical"
@@ -207,11 +213,57 @@
       "obsidian-memos:Thino Super": false
     }
   },
-  "active": "welcome-canvas-leaf",
+  "active": "0dbc366fea2d4524",
   "lastOpenFiles": [
+    "bin/setup-vault.sh.tmp.224546.1775558887360",
+    "Claude SEO Posts cover.gif",
+    "wiki/comparisons/Wiki vs RAG.md",
+    "README.md",
+    "Obsidian vault with Claude Code - full integration and visual organization 1.md",
+    "Obsidian vault with Claude Code - full integration and visual organization.md",
+    "cover.gif",
+    "Cosmic Brain Clean.gif",
+    "Claude SEO Posts cover 1x1-compressed.gif",
+    "Claude SEO Posts cover 1x1.gif",
+    "wiki/Wiki Map.canvas",
+    "wiki/overview.md",
+    "wiki/log.md",
+    "wiki/index.md",
     "wiki/canvases/welcome.canvas",
     "wiki/canvases/main.canvas",
-    "wiki/Wiki Map.canvas",
-    "wiki/index.md"
+    "wiki/concepts/LLM Wiki Pattern.md",
+    "wiki/concepts/Hot Cache.md",
+    "wiki/concepts/Compounding Knowledge.md",
+    "wiki/concepts/_index.md",
+    "wiki/entities/Andrej Karpathy.md",
+    "wiki/entities/_index.md",
+    "wiki/meta/workflow-loop.gif",
+    "wiki/meta/wiki-graph-grow.gif",
+    "wiki/meta/dashboard.md",
+    "wiki/questions/How does the LLM Wiki pattern work.md",
+    "wiki/sources/_index.md",
+    "wiki/hot.md",
+    "wiki/canvases/welcome.canvas.tmp.224546.1775558550671",
+    "PROMPT.md",
+    "WIKI 1.md",
+    "Cosmic Brain Cover.png",
+    "CLAUDE.md",
+    "README.md.tmp.224546.1775557814794",
+    "CLAUDE.md.tmp.224546.1775557799570",
+    "WIKI.md.tmp.224546.1775557791066",
+    "skills/canvas/SKILL.md.tmp.224546.1775557782936",
+    "skills/canvas/SKILL.md.tmp.224546.1775557766591",
+    "skills/canvas/SKILL.md.tmp.224546.1775557704281",
+    "skills/canvas/SKILL.md.tmp.224546.1775557697284",
+    "skills/canvas/SKILL.md.tmp.224546.1775557686442",
+    "skills/canvas/SKILL.md.tmp.224546.1775557679632",
+    "skills/canvas/references/canvas-spec.md",
+    "skills/canvas/SKILL.md",
+    "commands/canvas.md",
+    "projects/visual-vault/design-ideas.canvas",
+    "_attachments/images/skool-hub/wp-mcp-cover.png",
+    "_attachments/images/skool-hub/v3-cover-10.png",
+    "WIKI.md",
+    "Welcome.md"
   ]
 }