[BUG] CodeCov badge in the README doesn't display any useful info ATM

[kami619]

Bug Description

The Codecov badge in the README displays a failing or unknown status, even though CI tests are passing. This affects the project's perceived health on the repository landing page.

Badge URL in README:

[![codecov](https://codecov.io/gh/ambient-code/agentready/branch/main/graph/badge.svg)](https://codecov.io/gh/ambient-code/agentready)

To Reproduce

1. Go to https://github.com/ambient-code/agentready
2. View the README badges section
3. Observe the Codecov badge status

Expected Behavior

The Codecov badge should display current coverage percentage (e.g., "85%") or at minimum show a valid state linked to the latest CI run.

Actual Behavior

The badge shows a failing/unknown state despite CI being green.

Environment

• Repository: ambient-code/agentready
• Badge Type: Codecov SVG badge
• Branch: main

Additional Context

Possible causes:

1. Codecov integration not configured - The repository may not have Codecov enabled or the CODECOV_TOKEN secret may be missing
2. Coverage not being uploaded - CI workflow may not include a step to upload coverage reports to Codecov
3. Codecov project not linked - The Codecov project may not exist or may not be linked to this GitHub repository

Possible Solution

Option A: Configure Codecov integration

1. Sign in to codecov.io with GitHub
2. Enable the ambient-code/agentready repository
3. Add CODECOV_TOKEN as a repository secret
4. Add coverage upload step to CI workflow:

   - name: Upload coverage to Codecov
     uses: codecov/codecov-action@v4
     with:
       token: ${{ secrets.CODECOV_TOKEN }}
       files: ./coverage.xml
       fail_ci_if_error: false

Option B: Remove the badge
If Codecov integration is not desired, remove the badge from the README to avoid displaying misleading status.

Option C: Use alternative coverage badge
Use a different coverage reporting service that's already configured, or use a static badge until Codecov is properly set up.