[FEATURE]: Add opencode-usage-tracker to ecosystem

[Dylan-Liew]

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Describe the enhancement you want to request

Describe the enhancement you want to request

Request to add opencode-usage-tracker to the ecosystem page.

Currently, the ecosystem page doesn't list opencode-usage-tracker, making it harder for users to discover this community plugin.

opencode-usage-tracker is a lightweight analytics plugin for OpenCode:

• Plugin (opencode-usage-tracker): tracks and summarizes usage metrics during coding sessions
• Provides insights such as command frequency, session duration, and interaction patterns

Users install it by:

1. Adding "opencode-usage-tracker@latest" to the plugin array in opencode.json

Adding it to the ecosystem page would help users discover this practical and insightful community extension.