feat: initialize ERP base platform (extracted from HMS)

- Stripped 11 business crates (health, ai, dialysis, plugins)
- Cleaned AppState, AppConfig, main.rs from business coupling
- Reduced migrations from 169 to 53 (base-only)
- Removed health_provider trait from erp-core
- Removed business integration tests
- Removed gateway rate limiting middleware
- Base capabilities: auth, RBAC, JWT, config, workflow, message, plugin, audit, crypto, RLS, multi-tenant

Cargo check: OK
Cargo test: OK

.gitignore

@@ -0,0 +1,109 @@
+# Rust
+/target/
+**/*.rs.bk
+
+# Node
+node_modules/
+dist/
+
+# Tauri
+apps/desktop/src-tauri/target/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+
+# Environment
+.env
+*.env.local
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Docker data
+docker/postgres_data/
+docker/redis_data/
+
+# Test artifacts
+.test_token
+test-results/
+
+# Build outputs
+apps/miniprogram/dist-h5/
+
+# Runtime uploads
+uploads/
+
+# Temp logs
+_server_out.txt
+*.heapsnapshot
+perf-trace-*.json
+docs/debug-*.png
+
+# Development env
+.env.development
+docker/docker-compose.override.yml
+.agents/skills/
+.claude/skills/
+.kiro/skills/
+.trae/skills/
+.windsurf/skills/
+skills/
+
+# Logs
+.logs/
+*.log
+
+# Playwright reports
+**/playwright-report/
+
+# Plans
+plans/
+
+# MCP config
+.mcp.json
+
+# Superpowers temp
+.superpowers/brainstorm/
+
+# Test temp files
+.test_token*
+chi_sim.traineddata
+
+# Local settings
+.claude/settings.local.json
+tools/
+
+# Temp/debug files
+_temp/
+tmp/
+screenshots/
+server-log.txt
+snapshot_*.txt
+_*.txt
+_server_*.txt
+tmp_*.txt
+direct_*.txt
+server_*.txt
+server_combined.txt
+out.txt
+_wx_login.json
+.claude/settings.json
+
+# Trace/debug JSON
+trace-*.json
+
+# Graphify knowledge graph (regenerated locally)
+graphify-out/
+
+# Native miniprogram (separate project)
+apps/mp-native/
+
+# Misc untracked
+err.txt
+uploads/g:/hms/.superpowers/
+.claude/skills/design-handoff/node_modules/
+.design/config.yml
+.superpowers/