Pvp image display

[pld]

Display PVP bundle images on the form screens (data entry, QC, corrections, audit). Adds a unified ResultFormImage model with Pillow verify-before-store (JPEG/PNG/WebP) at the parser boundary, with size and decompression-bomb caps; corrupt or missing images are surfaced on the confirmation screen for operator consent rather than silently dropped. Images serve through an auth- and tally-scoped view with an explicit content type plus X-Content-Type-Options: nosniff. Reset soft-deletes (deactivates) PVP images for the audit trail; display, the serve view, and the number_of_images export column all honor active. Single migration; PvpSubmission drops its image fields. Manual upload lands in v2.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.74214% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.85%. Comparing base (acbe4f4) to head (e05ed2a).

Files with missing lines	Patch %	Lines
tally_ho/libs/pvp/import_submission.py	93.93%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #564      +/-   ##
==========================================
+ Coverage   84.68%   84.85%   +0.17%     
==========================================
  Files         174      180       +6     
  Lines       11979    12121     +142     
==========================================
+ Hits        10144    10285     +141     
- Misses       1835     1836       +1     

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