feat(messaging): add 2000-char limit warning to chat input

[pkouadio001]

o Enforced a hard limit of 2000 characters on chat input.
o Added a live character count indicator when users approach the limit (starting at 1800).
o Applied warning colors as the user nears/reaches the limit:
o neutral near threshold
o warning close to limit
o error at the limit
o Disabled the send action when input is invalid (over limit / blocked).
o Added a guard in send logic so over-limit text cannot be sent even if triggered programmatically.

This prevents oversized messages, gives clear user feedback before reaching the limit, and avoids failed/invalid message submissions.

[github-actions]

CareConnect Quality Gate Report

BLOCKED — One or more required checks failed. Fix the issues below before merging.

CareConnect — Security & Quality Analysis Report

Report Header

Field	Value
Generated (UTC)	2026-03-28 08:13:55 UTC
Pipeline Run	#628
Trigger	pull_request
Scan Root	.

All timestamps are reported in Coordinated Universal Time (UTC).

Pull Request

Field	Value
PR Number	#331
PR Author	@pkouadio001
Source Branch	feature/chat-message-char-limit-warning
Target Branch	main

Commit Details

Field	Value
Commit SHA	a8779fe (full)

Legend

Status	Meaning
SUCCESS	Tool ran and found no violations
FAILURE	Tool found one or more violations
DISABLED	Tool is not yet configured
Enforced	Violations from this tool will block the merge
Advisory	Violations are reported but will not block the merge

Tool Results Summary

Tool	Category	Status	Role	Findings
trufflehog	Secrets Scan	FAILURE	Enforced	44 finding(s)
gitleaks	Secrets Scan	FAILURE	Enforced	20 finding(s)
flutter_analyze	SAST — Flutter	FAILURE	Enforced	1481 finding(s)
checkstyle	SAST — Java	FAILURE	Enforced	29571 finding(s)
pmd	SAST — Java	FAILURE	Enforced	11251 finding(s)
spotbugs	SAST — Java	FAILURE	Enforced	710 finding(s)
semgrep	SAST — Multi	FAILURE	Enforced	53 finding(s)
pylint	SAST — Python	FAILURE	Enforced	180 finding(s)
bandit	SAST — Python	FAILURE	Enforced	39 finding(s)
htmlhint	SAST — Web	FAILURE	Enforced	623 finding(s)
stylelint	SAST — Web	FAILURE	Enforced	15 finding(s)
dependency_check	SCA — Multi	SUCCESS	Enforced	—
trivy	SCA — Container	FAILURE	Enforced	39 finding(s)

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