chore: Remove dss-claude-plugin directory

Removing obsolete plugin directory after consolidation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

dss-claude-plugin/core/schemas/ds.config.schema.json

@@ -1,52 +0,0 @@
-{
-  "$schema": "http://json-schema.org/draft-07/schema#",
-  "title": "DSS Project Manifest",
-  "type": "object",
-  "required": ["version", "project", "extends", "stack"],
-  "properties": {
-    "version": {"type": "string", "pattern": "^2\\.0\\.0$"},
-    "project": {
-      "type": "object",
-      "required": ["id", "name", "type"],
-      "properties": {
-        "id": {"type": "string", "pattern": "^[a-z0-9-]+$"},
-        "name": {"type": "string"},
-        "type": {"enum": ["web", "mobile", "desktop"]}
-      }
-    },
-    "extends": {
-      "type": "object",
-      "required": ["skin", "version"],
-      "properties": {
-        "skin": {"type": "string"},
-        "version": {"type": "string"}
-      }
-    },
-    "stack": {
-      "type": "object",
-      "required": ["framework", "styling"],
-      "properties": {
-        "framework": {"enum": ["react", "vue", "angular", "ios", "android", "flutter", "vanilla"]},
-        "styling": {"enum": ["tailwind", "css-modules", "styled-components", "emotion", "css-vars"]},
-        "icons": {"enum": ["lucide", "heroicons", "material", "custom"]},
-        "typescript": {"type": "boolean"}
-      }
-    },
-    "compiler": {
-      "type": "object",
-      "properties": {
-        "strict_mode": {"type": "boolean"},
-        "validation_level": {"enum": ["error", "warning", "info"]},
-        "output_format": {"enum": ["css-vars", "tailwind-config", "js-tokens"]},
-        "cache_strategy": {"enum": ["aggressive", "moderate", "disabled"]}
-      }
-    },
-    "overrides": {
-      "type": "object",
-      "properties": {
-        "tokens": {"type": "object"},
-        "files": {"type": "array", "items": {"type": "string"}}
-      }
-    }
-  }
-}