Log the panic callstack for debugging purposes

[masih]

When a non-upgrade panic is caught during ProcessBlock fetch the call stack and log it.

Because, without it debugging is much more difficult.

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Dec 18, 2025, 3:22 PM

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.61%. Comparing base (def3050) to head (1c08cb3).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
app/app.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2632      +/-   ##
==========================================
- Coverage   46.20%   43.61%   -2.59%     
==========================================
  Files        1231     1899     +668     
  Lines      107616   158402   +50786     
==========================================
+ Hits        49721    69091   +19370     
- Misses      53346    82968   +29622     
- Partials     4549     6343    +1794     

Flag	Coverage Δ
sei-chain	45.51% <0.00%> (+<0.01%)	⬆️
sei-cosmos	38.03% <ø> (?)
sei-db	69.06% <ø> (ø)
sei-tendermint	47.53% <ø> (+0.13%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
app/app.go	70.81% <0.00%> (-0.08%)	⬇️

... and 678 files with indirect coverage changes

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[github-actions]

Successfully created backport PR for release/v6.3:

• Backport release/v6.3: Log the panic callstack for debugging purposes #2633