Fix remaining old terminology references

- backend/app/main.py: grove/ -> project/ in SPA route check
- frontend/vite.config.ts: /grove -> /project proxy
- helm/orchard/templates/NOTES.txt: Updated API examples
- migrations/001_initial.sql: Updated table/column names

helm/orchard/templates/NOTES.txt

@@ -24,31 +24,31 @@ Orchard has been installed!
 {{- end }}
 
 2. API Endpoints:
-   - Health Check: GET /health
-   - List Groves:  GET /api/v1/groves
-   - Create Grove: POST /api/v1/groves
-   - Upload:       POST /api/v1/grove/{grove}/{tree}/cultivate
-   - Download:     GET /api/v1/grove/{grove}/{tree}/+/{ref}
+   - Health Check:    GET /health
+   - List Projects:   GET /api/v1/projects
+   - Create Project:  POST /api/v1/projects
+   - Upload:          POST /api/v1/project/{project}/{package}/upload
+   - Download:        GET /api/v1/project/{project}/{package}/+/{ref}
 
 3. Example Usage:
 
-   # Create a grove
-   curl -X POST http://localhost:8080/api/v1/groves \
+   # Create a project
+   curl -X POST http://localhost:8080/api/v1/projects \
      -H "Content-Type: application/json" \
      -d '{"name": "my-project", "description": "My project", "is_public": true}'
 
-   # Create a tree
-   curl -X POST http://localhost:8080/api/v1/grove/my-project/trees \
+   # Create a package
+   curl -X POST http://localhost:8080/api/v1/project/my-project/packages \
      -H "Content-Type: application/json" \
      -d '{"name": "releases", "description": "Release builds"}'
 
    # Upload an artifact
-   curl -X POST http://localhost:8080/api/v1/grove/my-project/releases/cultivate \
+   curl -X POST http://localhost:8080/api/v1/project/my-project/releases/upload \
      -F "file=@./my-artifact.tar.gz" \
      -F "tag=v1.0.0"
 
    # Download an artifact
-   curl -O http://localhost:8080/api/v1/grove/my-project/releases/+/v1.0.0
+   curl -O http://localhost:8080/api/v1/project/my-project/releases/+/v1.0.0
 
 {{- if .Values.postgresql.enabled }}