Reorganize repository structure and clean up documentation

Clean up and organize the flask-shopdb repository for better
maintainability and discoverability:

## Changes

- Update .gitignore for build artifacts (publish/, data/, 122M total)
- Reorganize .claude/ into 6 subdirectories with README navigation
- Consolidate overlapping MCP setup guides into MCP-QUICK-START.md
- Move deployment docs from root to docs/deployment/
- Archive dated status reports to .claude/archived/
- Delete temporary files (logs, backups, empty reports, ~50K)

## New Structure

.claude/ organized into:
- setup/ - MCP, VM, Hyper-V, GitHub setup guides + scripts (17 files)
- plans/ - Feature plans and protocols (5 files)
- maintenance/ - Deployment checklists and reports (4 files)
- archived/ - Historical documentation (9 files)
- skills/ - Claude Code automation (5 files)
- workflows/ - Security audit workflow (1 file)

docs/deployment/ created with 6 deployment guides:
- LOCAL-DEV-SETUP.md, DOCKER-SETUP.md, DOCKER-PREBUILT-APPROACH.md
- PRODUCTION-READINESS.md, DEPLOY-TO-VM.md, README.md

Root directory cleaned to essential docs only:
- CLAUDE.md, README.md, CONTRIBUTING.md, CHANGELOG.md

Benefits:
- Clear navigation via README.md in each subdirectory
- No duplicate/overlapping documentation
- Large artifacts properly gitignored (won't bloat repository)
- Historical context preserved in archived/

See .claude/CLEANUP-SUMMARY.md for complete details.

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

.gitignore

@@ -140,6 +140,24 @@ pt*.txt
 alandry.py
 kendry.py
 
+# Coordinator local database and MCP state
+data/
+
+# Build artifacts - compiled agent binaries
+publish/
+
+# Project handoff artifacts and analysis reports
+asset-settings-handoff/
+asset-settings-handoff.zip
+
+# Generated SBOM
+sbom.cdx.json
+
+# Deployment helper scripts (work PC specific)
+deploy-agent-to-vm.cmd
+start-dev.cmd
+stop-dev.cmd
+
 # Visual Studio local editor state (not product source).
 .vs/