chore: rename cameleer3 to cameleer

Rename Java packages from net.siegeln.cameleer3 to net.siegeln.cameleer,
update all references in workflows, Docker configs, docs, and bootstrap.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/superpowers/specs/2026-04-06-custom-sign-in-ui-design.md

@@ -2,11 +2,11 @@
 
 ## Problem
 
-Logto's default sign-in page uses Logto branding. While we configured colors and logos via `PATCH /api/sign-in-exp`, control over layout, typography, and components is limited. The sign-in experience is visually inconsistent with the cameleer3-server login page.
+Logto's default sign-in page uses Logto branding. While we configured colors and logos via `PATCH /api/sign-in-exp`, control over layout, typography, and components is limited. The sign-in experience is visually inconsistent with the cameleer-server login page.
 
 ## Goal
 
-Replace Logto's sign-in UI with a custom React SPA that visually matches the cameleer3-server login page, using `@cameleer/design-system` components for consistency across all deployment models.
+Replace Logto's sign-in UI with a custom React SPA that visually matches the cameleer-server login page, using `@cameleer/design-system` components for consistency across all deployment models.
 
 ## Scope
 
@@ -54,9 +54,9 @@ The interaction cookie is set by `/oidc/auth` before the user lands on the sign-
 
 ## Visual Design
 
-Matches cameleer3-server LoginPage exactly:
+Matches cameleer-server LoginPage exactly:
 - Centered `Card` (400px max-width, 32px padding)
-- Logo: favicon.svg + "cameleer3" text (24px bold)
+- Logo: favicon.svg + "cameleer" text (24px bold)
 - Random witty subtitle (13px muted)
 - `FormField` + `Input` for username and password
 - Amber `Button` (primary variant, full-width)