Expose the reason parameter in the flag endpoint

[testableapple]

🔗 Issue Links

Resolve https://github.com/GetStream/ios-issues-tracking/issues/801

🎯 Goal

Expose the reason parameter in the flag endpoint

🧪 Manual Testing Notes

N/A

☑️ Contributor Checklist

• [x] I have signed the Stream CLA (required)
• [x] This change follows zero ⚠️ policy (required)
• [x] This change should be manually QAed
• [x] Changelog is updated with client-facing changes
• [ ] New code is covered by unit tests
• [ ] Comparison screenshots added for visual changes
• [ ] Affected documentation updated (docusaurus, tutorial, CMS)

🎁 Meme

[Stream-SDK-Bot]

StreamChat XCMetrics

target	metric	benchmark	branch	performance	status
MessageList	Hitches total duration	10 ms	5.01 ms	49.9% 🔼	🟢
	Duration	2.6 s	2.56 s	1.54% 🔼	🟢
	Hitch time ratio	4 ms per s	1.96 ms per s	51.0% 🔼	🟢
	Frame rate	79 fps	77.88 fps	1.42% 🔼	🟢
	Number of hitches	1	0.6	40.0% 🔼	🟢
ChannelList	Hitches total duration	12.5 ms	1.67 ms	86.64% 🔼	🟢
	Duration	2.6 s	0.98 s	62.31% 🔼	🟢
	Hitch time ratio	5 ms per s	1.72 ms per s	65.6% 🔼	🟢
	Frame rate	76 fps	72.34 fps	4.82% 🔼	🟢
	Number of hitches	1.2	0.2	83.33% 🔼	🟢

[testableapple]

@martinmitrevski,

• whether the reason indeed appears in the moderation dashboard

Fair point. Let's add something to the DemoApp so we can test it.

[martinmitrevski]

@martinmitrevski,

• whether the reason indeed appears in the moderation dashboard

Fair point. Let's add something to the DemoApp so we can test it.

Wouldn't add UI just for this tbh. Just hardcode a string, and see if it indeed appears in the dashboard.

[sonarqubecloud[bot]]

Quality Gate passed

Issues
67 New issues
0 Accepted issues

Measures
0 Security Hotspots
83.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud