Replace SQLite with JSON file storage

- Remove database.py (SQLite) from tools/storage/ and dss-mvp1/
- Add json_store.py with full JSON-based storage layer
- Update 16 files to use new json_store imports
- Storage now mirrors DSS canonical structure:
  .dss/data/
  ├── _system/    (config, cache, activity)
  ├── projects/   (per-project: tokens, components, styles)
  └── teams/      (team definitions)
- Remove Docker files (not needed)
- Update DSS_CORE.json to v1.1.0

Philosophy: "Eat our own food" - storage structure matches DSS design

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

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

.knowledge/DSS_CORE.json

@@ -1,6 +1,6 @@
 {
   "$schema": "dss-core-v1",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "last_updated": "2025-12-10",
   "purpose": "Single source of truth for AI agents working with DSS",
 
@@ -53,7 +53,7 @@
     "layers": {
       "router": "MCP Server (36 tools), REST API (34 endpoints), CLI",
       "messaging": "Circuit breaker, Activity log, Event emitter",
-      "workflows": "Figma client, Token ingestion, Storybook generator, Analysis engine, Context compiler, Storage (SQLite)"
+      "workflows": "Figma client, Token ingestion, Storybook generator, Analysis engine, Context compiler, Storage (JSON files)"
     },
     "ports": {
       "rest_api": 3456,
@@ -62,8 +62,17 @@
     "dependencies": {
       "python": ">=3.10",
       "node": ">=18",
-      "db": "sqlite3",
-      "services": ["figma-api", "storybook", "nginx"]
+      "services": ["figma-api", "storybook"]
+    },
+    "storage": {
+      "type": "JSON files",
+      "location": ".dss/data/",
+      "structure": {
+        "_system": "config, cache, activity logs",
+        "projects/{id}": "manifest, tokens/, components/, styles/, figma/, metrics/",
+        "teams/{id}": "manifest, members, access"
+      },
+      "philosophy": "Eat our own food - storage mirrors DSS canonical structure"
     }
   },
 
@@ -98,7 +107,8 @@
     "rest_api": "tools/api/server.py",
     "token_parsers": "tools/ingest/",
     "analysis": "tools/analyze/",
-    "database": ".dss/dss.db",
+    "storage": "tools/storage/json_store.py",
+    "data": ".dss/data/",
     "schemas": ".dss/schema/",
     "admin_ui": "admin-ui/",
     "skills": "dss-claude-plugin/skills/",
@@ -201,8 +211,8 @@
       "debounce_ms": 250
     },
     "storage": {
-      "db": ".dss/dss.db",
-      "cache": ".dss/cache"
+      "data": ".dss/data/",
+      "cache": ".dss/data/_system/cache/"
     }
   },
 
@@ -213,6 +223,7 @@
   },
 
   "changelog": [
+    {"version": "1.1.0", "date": "2025-12-10", "notes": "Migrate from SQLite to JSON file storage"},
     {"version": "1.0.0", "date": "2025-12-10", "notes": "Initial core definition"}
   ]
 }