Update modular design documentation and workspace configuration

- Change the active file in workspace.json to point to the new modular-design.md.
- Revise modular-design.md to enhance clarity and structure, including a new table of contents and updated sections on design philosophy, architecture components, and service abstractions.
- Remove outdated content and improve the overall presentation of modular design patterns and best practices.

These updates aim to streamline the documentation for better accessibility and understanding of the modular architecture.

docs/.obsidian/graph.json

@@ -0,0 +1,22 @@
+{
+  "collapse-filter": true,
+  "search": "",
+  "showTags": false,
+  "showAttachments": false,
+  "hideUnresolved": false,
+  "showOrphans": true,
+  "collapse-color-groups": true,
+  "colorGroups": [],
+  "collapse-display": true,
+  "showArrow": false,
+  "textFadeMultiplier": 0,
+  "nodeSizeMultiplier": 1,
+  "lineSizeMultiplier": 1,
+  "collapse-forces": true,
+  "centerStrength": 0.518713248970312,
+  "repelStrength": 10,
+  "linkStrength": 1,
+  "linkDistance": 250,
+  "scale": 0.6488873738523617,
+  "close": false
+}

docs/.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "04-migrations/dependency-injection-migration.md",
+                "file": "01-architecture/modular-design.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "dependency-injection-migration"
+              "title": "modular-design"
             }
           }
         ]
@@ -170,7 +170,16 @@
   },
   "active": "fe085d296b05d361",
   "lastOpenFiles": [
+    "06-deployment/index.md",
+    "04-migrations/dependency-injection-migration.md",
+    "01-architecture/modular-design.md",
     "01-architecture/index.md",
+    "01-architecture/authentication-architecture.md",
+    "01-architecture/modular-design.md.tmp.1581693.1757246120074",
+    "01-architecture/modular-design.md.tmp.1581693.1757246069013",
+    "01-architecture/modular-design.md.tmp.1581693.1757245931642",
+    "03-core-services/authentication.md.tmp.1581693.1757245911412",
+    "03-core-services/authentication.md.tmp.1581693.1757245834001",
     "00-overview/index.md"
   ]
 }