Upgrade Datadog Browser SDK to v7

Systematic migration guide from v6 to v7. Follow steps 1-6 in order. Each step includes a search pattern to find affected code.

Step 1: Update SDK version

CDN setup — update script src URLs:

v6 pattern	v7 replacement
`datadoghq-browser-agent.com/us1/v6/datadog-rum.js`	`datadoghq-browser-agent.com/us1/v7/datadog-rum.js`
`datadoghq-browser-agent.com/us1/v6/datadog-logs.js`	`datadoghq-browser-agent.com/us1/v7/datadog-logs.js`
`datadoghq-browser-agent.com/us1/v6/datadog-rum-slim.js`	`datadoghq-browser-agent.com/us1/v7/datadog-rum-slim.js`

Replace us1 with your site: eu1, us3, us5, ap1, ap2. For US1-FED, the pattern is flat: datadog-rum-v7.js (no site prefix).

Search: grep -r "datadoghq-browser-agent.com.*v6" --include="*.html" --include="*.js" --include="*.ts" --include="*.tsx"

npm setup — update package.json dependencies: