Remove Dependabot and deploy workflow configs

Deleted .github/dependabot.yml and .github/workflows/deploy.yml to disable automated dependency updates and deployment to Cloudflare Workers.

.github/dependabot.yml

@@ -1,8 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    pull-request-branch-name:
-      separator: "-"

.github/workflows/deploy.yml

@@ -1,19 +0,0 @@
-name: Deploy to Cloudflare Workers
-on:
-  push:
-    branches:
-      - main
-    paths-ignore:
-      - "**/*.md"
-
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Build & Deploy Worker
-        uses: cloudflare/wrangler-action@v3
-        with:
-          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
-          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}