Add Multiple Sales Pipelines

[micropyramid-dev]

Summary

Support multiple sales pipelines for different products, teams, or sales processes.

Description

Multiple pipelines that:

1. Create separate pipelines (e.g., New Business, Renewals, Upsells)
2. Different stages per pipeline
3. Assign deals to specific pipelines
4. Pipeline-specific reporting
5. Move deals between pipelines

Acceptance Criteria

• Create/edit/delete pipelines
• Custom stages per pipeline
• Default pipeline setting
• Assign deals to pipeline on creation
• Filter deals by pipeline
• Pipeline-specific dashboard/view
• Move deal to different pipeline
• Pipeline-specific win rates
• Permissions per pipeline
• Pipeline templates

Technical Notes

• Pipeline as separate model
• Stages linked to pipeline
• Update existing Opportunities to support pipeline FK
• Consider pipeline-specific custom fields