docs: update dsh-token-usage-sidebar listing for v1.1.6

[y2zyyr]

Update the existing y2zyyr/dsh-token-usage-sidebar catalog entry for the current v1.1.6 release.

Changes:

• describe automatic discovery of available plugin-owned history
• clarify that provider/model labels come from DSH
• mention per-range and recent-day breakdowns
• retain the local SQLite exactly-once accounting description

This PR changes only catalog/plugins/y2zyyr--dsh-token-usage-sidebar.json. The plugin is published as @y2zyyr/dsh-token-usage-sidebar@1.1.6 on npm.

[github-actions]

Plugin submission review passed — maintainer review required

All static checks passed for this change set:

• M catalog/plugins/y2zyyr--dsh-token-usage-sidebar.json

Install availability

y2zyyr/dsh-token-usage-sidebar — The 1024 Store installs plugins from npm only. Until @y2zyyr/dsh-token-usage-sidebar (with its dsh.bundle declaration) is published to npm, this plugin is listed browse-only — visitors see the repository link but no install command. The catalog detects a newly published package automatically; no follow-up pull request is needed.

This pull request modifies or removes existing catalog entries, so it will not be merged automatically. A maintainer will review the change set and merge it manually.