✔️ STICKIES / TODOLIST — CANONICAL CHECKLIST

A. BASELINE

• Normal load
• No filter

B. FILTERS

• tasksonly
• events
• nontasks
• attachments
• noattachments
• urgent
• completed
• softdeleted
• tags
• subject search
• combos

C. EDIT

• Edit text
• Visibility under filters

D. PAPERCLIP

• Add attachment → count++ → icon on
• Remove last attachment → count=0 → icon off
• Visibility under attachments/noattachments filters

E. ADD / DELETE

• Add item
• Delete item
• Batch delete

F. SORTS

• UploadedAt asc/desc
• Subject asc/desc
• Deadline asc/desc
• UpdatedAt asc/desc

G. DEADLINES

• Deadline = filter+sort hybrid
• Deadline‑only = true filter

H. ROUTING

• Paperclip → Attachments → back
• Edit non‑attachment item
• Paperclip always routes