feat: add option to disable message preprocessing in the internal appconfiguration

[MohamadJaara]

Adds an internal developer-menu flag to disable message preprocessing and markdown preview behavior in the composer.

The current preprocessing can alter messages in ways that make composing feel unpredictable, especially when typing or pasting exact text/code or URLs. This flag is a temporary bandage so messages can be sent closer to what was typed while we sort out the underlying composer/preprocessing behavior properly.

Notes

• Keeps mentions and link previews working.
• Disables markdown/format preprocessing in the input.
• Sends raw text without automatic trimming when enabled.

[codecov]

Codecov Report

❌ Patch coverage is 32.72727% with 37 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.94%. Comparing base (c5dd9d8) to head (7031fbc).
⚠️ Report is 529 commits behind head on dev.

Files with missing lines	Patch %	Lines
...gins/PlainTextPastePlugin/PlainTextPastePlugin.tsx	6.66%	14 Missing ⚠️
.../script/components/ConfigToolbar/ConfigToolbar.tsx	0.00%	5 Missing ⚠️
...r/InputBarEditor/RichTextEditor/RichTextEditor.tsx	42.85%	1 Missing and 3 partials ⚠️
...webapp/src/script/components/InputBar/InputBar.tsx	70.00%	2 Missing and 1 partial ⚠️
...p/src/script/util/debugMessagePreprocessingUtil.ts	62.50%	3 Missing ⚠️
...BarEditor/RichTextEditor/utils/transformMessage.ts	33.33%	2 Missing ⚠️
...Editor/RichTextEditor/utils/useEditorDraftState.ts	33.33%	0 Missing and 2 partials ⚠️
apps/webapp/src/script/util/debugUtil.ts	0.00%	2 Missing ⚠️
.../components/ConfigToolbar/ConfigToolbar.styles.tsx	0.00%	1 Missing ⚠️
...seMessageHandling/useMessageSend/useMessageSend.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #21275      +/-   ##
==========================================
- Coverage   44.95%   44.94%   -0.01%     
==========================================
  Files        1705     1707       +2     
  Lines       44906    44952      +46     
  Branches     9399     9412      +13     
==========================================
+ Hits        20187    20205      +18     
- Misses      22423    22447      +24     
- Partials     2296     2300       +4     

Flag	Coverage Δ
app_webapp	43.08% <32.72%> (-0.01%)	⬇️
lib_api_client	51.72% <ø> (ø)
lib_core	58.81% <ø> (ø)

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

Files with missing lines	Coverage Δ
...ponents/InputBar/InputBarEditor/InputBarEditor.tsx	100.00% <ø> (ø)
.../InputBar/useMessageHandling/useMessageHandling.ts	39.65% <ø> (ø)
.../components/ConfigToolbar/ConfigToolbar.styles.tsx	0.00% <0.00%> (ø)
...seMessageHandling/useMessageSend/useMessageSend.ts	23.88% <0.00%> (+0.35%)	⬆️
...BarEditor/RichTextEditor/utils/transformMessage.ts	40.00% <33.33%> (-10.00%)	⬇️
...Editor/RichTextEditor/utils/useEditorDraftState.ts	73.33% <33.33%> (-12.39%)	⬇️
apps/webapp/src/script/util/debugUtil.ts	0.00% <0.00%> (ø)
...webapp/src/script/components/InputBar/InputBar.tsx	60.56% <70.00%> (+2.49%)	⬆️
...p/src/script/util/debugMessagePreprocessingUtil.ts	62.50% <62.50%> (ø)
...r/InputBarEditor/RichTextEditor/RichTextEditor.tsx	62.96% <42.85%> (-7.88%)	⬇️
... and 2 more

... and 1 file with indirect coverage changes

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[github-actions]

🔗 Download Full Report Artifact

🧪 Playwright Test Summary

• ✅ Passed: 15
• ❌ Failed: 0
• ⏭ Skipped: 0
• 🔁 Flaky: 0
• 📊 Total: 15
• ⏱ Total Runtime: 3342.2s (~ 55 min 42 sec)

[sonarqubecloud]

Quality Gate passed

Issues
7 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud