fix: trim README badges to 7 dynamic essentials (#83)

Remove 5 problematic badges:
- Tests/Coverage: static values that go stale on every change
- Installs: shows 0 for a newly published extension
- Release: redundant with Marketplace; ugly patchloom- tag prefix
- FOSSA: static link badge with no dynamic status (API returns 404)

Keep 7 badges, all dynamic except License:
CI, Security, Marketplace, Open VSX, Scorecard, Best Practices, License

Signed-off-by: Sebastien Tardif <sebtardif@ncf.ca>

Author: SebTardif

README.md

@@ -6,16 +6,11 @@
 
 [![CI](https://github.com/patchloom/patchloom-vscode/actions/workflows/ci.yml/badge.svg)](https://github.com/patchloom/patchloom-vscode/actions/workflows/ci.yml)
 [![Security](https://github.com/patchloom/patchloom-vscode/actions/workflows/security.yml/badge.svg)](https://github.com/patchloom/patchloom-vscode/actions/workflows/security.yml)
-[![Tests](https://img.shields.io/badge/tests-193%20passing-brightgreen)](#)
-[![Coverage](https://img.shields.io/badge/coverage-82%25-brightgreen)](#)
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/patchloom/patchloom-vscode/blob/main/LICENSE)
-[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/patchloom/patchloom-vscode/badge)](https://securityscorecards.dev/viewer/?uri=github.com/patchloom/patchloom-vscode)
-[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/13100/badge)](https://www.bestpractices.dev/projects/13100)
-[![FOSSA Status](https://img.shields.io/badge/license%20scan-FOSSA-blue)](https://app.fossa.com/projects/git%2Bgithub.com%2Fpatchloom%2Fpatchloom-vscode)
-[![Release](https://img.shields.io/github/v/release/patchloom/patchloom-vscode?logo=github&sort=semver)](https://github.com/patchloom/patchloom-vscode/releases/latest)
 [![VS Code Marketplace](https://vsmarketplacebadges.dev/version/patchloom.patchloom.svg)](https://marketplace.visualstudio.com/items?itemName=patchloom.patchloom)
-[![Installs](https://vsmarketplacebadges.dev/installs/patchloom.patchloom.svg)](https://marketplace.visualstudio.com/items?itemName=patchloom.patchloom)
 [![Open VSX](https://img.shields.io/open-vsx/v/patchloom/patchloom)](https://open-vsx.org/extension/patchloom/patchloom)
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/patchloom/patchloom-vscode/badge)](https://securityscorecards.dev/viewer/?uri=github.com/patchloom/patchloom-vscode)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/13100/badge)](https://www.bestpractices.dev/projects/13100)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/patchloom/patchloom-vscode/blob/main/LICENSE)
 
 The official VS Code extension for [Patchloom](https://github.com/patchloom/patchloom). Set up your workspace for AI agent workflows in seconds: detect the CLI, generate agent rules, configure MCP servers, and run structured file operations from the command palette.