Title feat(notifications): Add Microsoft Teams provider -#2783

[Harikrishnan1367709]

1.Add Microsoft Teams notification provider: UI selector + Teams icon, form fields, and client-side Zod schema. 2.Wire create/update/test flows to existing tRPC mutations (createTeams/updateTeams/testTeamsConnection). 3.Use public teams_logo.png for provider icon and include Teams-specific form fields (webhookUrl, decoration). Note: requires DB migration to add teams table and notification.teamsId (nullable FK) and server-side send/test implementation.

Fix #2783

[Siumauricio]

@Harikrishnan1367709 Can you resolve the conflicts?

[Harikrishnan1367709]

@Harikrishnan1367709 Can you resolve the conflicts?

ok @Siumauricio

[mtb77]

@Harikrishnan1367709 @Siumauricio

Here is the fix as patch. merge-conflict-fix.patch