Remove Settings and Setup pages along with their tests and related API services

- Deleted Settings.tsx and Setup.tsx pages, which included functionality for changing passwords and setting up an admin account.
- Removed associated test files for Setup page.
- Eliminated API service definitions related to proxy hosts, remote servers, import functionality, and health checks.
- Cleaned up mock data and test setup files.
- Removed configuration files for TypeScript, Vite, and Tailwind CSS.
- Deleted scripts for testing coverage, release management, Dockerfile validation, and Python compilation checks.
- Removed Sourcery pre-commit wrapper script.

.github/ISSUE_TEMPLATE/alpha-feature.yml

@@ -1,93 +0,0 @@
-name: 🏗️ Alpha Feature
-description: Create an issue for an Alpha milestone feature
-title: "[ALPHA] "
-labels: ["alpha", "feature"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        ## Alpha Milestone Feature
-        Features that are part of the core foundation and initial release.
-
-  - type: dropdown
-    id: priority
-    attributes:
-      label: Priority
-      description: How critical is this feature?
-      options:
-        - Critical (Blocking, must-have)
-        - High (Important, should have)
-        - Medium (Nice to have)
-        - Low (Future enhancement)
-    validations:
-      required: true
-
-  - type: input
-    id: issue_number
-    attributes:
-      label: Planning Issue Number
-      description: Reference number from PROJECT_PLANNING.md (e.g., Issue #5)
-      placeholder: "Issue #"
-    validations:
-      required: false
-
-  - type: textarea
-    id: description
-    attributes:
-      label: Feature Description
-      description: What should this feature do?
-      placeholder: Describe the feature in detail
-    validations:
-      required: true
-
-  - type: textarea
-    id: tasks
-    attributes:
-      label: Implementation Tasks
-      description: List of tasks to complete this feature
-      placeholder: |
-        - [ ] Task 1
-        - [ ] Task 2
-        - [ ] Task 3
-      value: |
-        - [ ]
-    validations:
-      required: true
-
-  - type: textarea
-    id: acceptance
-    attributes:
-      label: Acceptance Criteria
-      description: How do we know this feature is complete?
-      placeholder: |
-        - [ ] Criteria 1
-        - [ ] Criteria 2
-      value: |
-        - [ ]
-    validations:
-      required: true
-
-  - type: checkboxes
-    id: categories
-    attributes:
-      label: Categories
-      description: Select all that apply
-      options:
-        - label: Backend
-        - label: Frontend
-        - label: Database
-        - label: Caddy Integration
-        - label: Security
-        - label: SSL/TLS
-        - label: UI/UX
-        - label: Deployment
-        - label: Documentation
-
-  - type: textarea
-    id: technical_notes
-    attributes:
-      label: Technical Notes
-      description: Any technical considerations or dependencies?
-      placeholder: Libraries, APIs, or other issues that need to be completed first
-    validations:
-      required: false