chore: exclude generated files from git tracking

- Remove .dss/data/, .dss/components/, generated stories from tracking
- Update .gitignore to exclude all runtime/generated content
- Keep only reference files (.dss/config/, .dss/core/, .dss/skins/, .dss/themes/, .dss/schema/)

Generated files are now created on /dss-init and not committed.

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

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

.gitignore

@@ -12,6 +12,7 @@ build/
 node_modules/
 npm-debug.log*
 yarn-error.log*
+package-lock.json
 
 # Environment
 .env
@@ -47,12 +48,6 @@ coverage/
 # Cache
 .cache/
 .dss-temp/
-.dss/cache/
-
-# Temp files (exclude all except README and .gitkeep)
-.dss/temp/**/*
-!.dss/temp/.gitkeep
-!.dss/temp/README.md
 
 # Backups
 *.backup
@@ -62,11 +57,45 @@ coverage/
 archive/
 test_output/
 
-# Build
+# Build outputs
 dist/
 .next/
 out/
 storybook-static/
-venv/
-# Local MCP config (generated by ./scripts/setup-mcp.sh)
+
+# Local MCP config (generated by dss-init.sh)
+.mcp.json
 .claude/mcp.json
+
+# =============================================================================
+# DSS GENERATED FILES - Created by /dss-init, not committed
+# =============================================================================
+
+# DSS runtime data (created on init)
+.dss/data/
+.dss/cache/
+.dss/logs/
+.dss/dss.db
+.dss/dss.pid
+.dss/components/
+.dss/runtime-config.json
+
+# DSS generated hashes (regenerated on init)
+.dss/core-hashes.sha256
+
+# Generated Storybook stories (created from tokens)
+admin-ui/src/stories/
+
+# admin-ui build output
+admin-ui/dist/
+
+# =============================================================================
+# DSS REFERENCE FILES - These ARE committed (source of truth)
+# =============================================================================
+# Keep these in git:
+# - .dss/config/           # Figma credentials, project config
+# - .dss/core/             # Core primitives (immutable reference)
+# - .dss/skins/            # Skin definitions (reference)
+# - .dss/themes/           # Theme definitions (reference)
+# - .dss/schema/           # Contracts and schemas (reference)
+# - dss-claude-plugin/core/skins/  # Plugin skin references