[Refactor]: Unify Evidence Flow & Link FIR to Court Case

[viru0909-dev]

Current Problem

The Litigant Dashboard treats "FIRs" and "Court Cases" as completely separate silos, and the "Documents" vs "Evidence Vault" tabs are confusing users.

Required Logic Changes

1. The "Evidence" Merge

• Action: Merge the "Documents" and "Evidence Vault" tabs into a single "Case Files" tab.
• Logic:
  • All uploads appear here.
  • Files that are "Hashed/Secured" get the Green Shield Icon (Verified).
  • New Feature: Add a Download Certificate button for all Verified files (Generates the Sec 63(4) PDF).

2. The FIR -> Case Bridge

• Action: When a Police Officer clicks "Accept" on an FIR:
  • Update FIR Status to REGISTERED.
  • Auto-Create a new entry in the "Court Cases" table linked to this FIR.
  • Notification: Alert the Litigant: "Your FIR has been registered as Case #123. You can now hire a lawyer."

3. The "Active" Timeline

• Action: The timeline must listen to backend events.
• Events to Log: Police_Viewed, Judge_Assigned, Hearing_Scheduled.