Add theSaver plugin to ecosystem page

[DrunkkToys]

Summary

Adds theSaver to the Plugins table in the ecosystem page.

theSaver is a cost-aware delegation enforcer plugin for OpenCode that:

• Routes Task subagents to cheaper model tiers based on orchestrator tier
• Tracks prompt-cache savings and surfaces cumulative ROI in every response
• Provides a trinity CLI for brain/medium/cheap slot switching
• Injects context7 and judge-pattern directives into system prompts
• Compresses verbose tool outputs and context for token efficiency

[github-actions]

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[github-actions]

Hey! Your PR title Add theSaver plugin to ecosystem page doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

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[github-actions]

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