[DCV-3662] Update to 3.38.2

[jesusmgg]

Supersedes datacoves#1

Took current code from upstream, reapplied all of the old PR changes manually, plus new branding and feature removal changes.

Changes:

• Branding changes: icons and strings everywhere.
• Publisher, package name.
• Initial chat content.
• Welcome message (initial when no API key).
• API headers (sent to model provider). Now refers to Datacoves Copilot.
• Documentation links.
• Removed Roo Cloud.
• Disabled Roo Code changelog.

[roomote]

Rooviewer   See task on Roo Cloud

Review complete. Found 2 inconsistencies in the rebranding from "Roo Code" to "Datacoves Copilot":

• serviceUrl in Roo.tsx still points to https://roocode.com but serviceName was updated to "Datacoves Copilot Cloud"
• Documentation URL in docLinks.ts still points to docs.roocode.com but the comment was updated to mention "Datacoves Copilot"

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}

[ellipsis-dev]

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[roomote]

The serviceName was updated to "Datacoves Copilot Cloud" but the adjacent serviceUrl on line 57 still points to https://roocode.com. This is inconsistent with the rebranding - the service URL should likely be updated to point to Datacoves as well.

_{Fix it with Roo Code or mention @roomote and request a fix.}

[roomote]

The comment was updated to mention "Datacoves Copilot" but the actual URL in buildDocLink on line 12 still points to docs.roocode.com. If the intent is to redirect users to Datacoves documentation, the base URL should also be updated to match the Datacoves docs URL used elsewhere (e.g., in About.tsx and WelcomeView.tsx which use docs.datacoves.com).

_{Fix it with Roo Code or mention @roomote and request a fix.}