feat: publish Hive dashboard section help page

changelog.d/added-253-hive-dashboard-help-page.md

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+- Published the Hive dashboard section help page, the dashboard glossary and
+  the labels and control signals reference under a new "Dashboard" sidebar
+  group (hivecommons/docs#253).

docs/content/hive/dashboard-glossary.md

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+> **Synced from Hive.** This page is pulled from [hivecommons/hive@v5](https://github.com/hivecommons/hive/blob/v5/src/docs/dashboard-glossary.md) during the docs build. Edit the canonical source in the Hive repository.
+
+# Dashboard glossary and sidebar IA
+
+This glossary records the operator-facing names used by the dashboard. The ADR-0018 IA/naming pass is implemented.
+
+For a plain-language explanation of every dashboard section — what it shows, how its numbers are worked out, and what to do about them — see [Dashboard sections explained](/docs/hive/dashboard-sections). Each section title's **?** mark opens its entry there.
+
+## Terms
+
+| Term | Meaning | Use in operator UI |
+| --- | --- | --- |
+| Agent | Runnable automation process or configured role that can plan, scan, review, or otherwise work on hive tasks. | Use for dashboard automation and agent detail pages. |
+| Contributor | Human or GitHub account participating through the contributor portal. | Use for people/accounts, leaderboards, trust controls, and profile/admin copy. |
+| Contributor agent (ClankeR) | A contributor's relay-backed worker. Use the full form on first or prominent mention, then Contributor agent for repeated inline mentions. | Use when the operator UI refers to the worker connected through the contributor relay. |
+| Governor | Policy engine that decides cadence, autonomy, budgets, and merge/apply gates. | Use for the overview/governance surface and settings that control automation policy. |
+| Fleet | The set of agents or contributor agents under observation in an operational context. | Use for aggregate operational controls and live monitoring. |
+| Issue band | A display-only group in a repository card's issue column, named for the operator's action: Unclaimed, Claimed, Needs triage (agent-filed and not yet acknowledged by a human), Needs human, or Confirm & close. | Use for Projects card grouping; do not imply scheduler eligibility changed. Hover a band header, Overview slice, or legend row for its rule. |
+| Pill legend | The collapsible Projects-section key explaining pill colours, borders, glyphs, and badges as a colour key plus captioned issue, pull-request, review, link, and action pills. The aligned repository-card rows keep the left chip for the issue band or PR review class and align actions in fixed slots. | Use for the compact legend above project cards. |
+| PR band | A display-only group in a repository card's pull-request column: Needs human, Merge-eligible, Blocked, In review, Open, or Draft. | Use for Projects card grouping; do not imply merge queue, hold, or review eligibility changed. |
+| Stale issue | An actionable repository-card issue whose `updated_at` activity is older than the configured `dashboard.issue_bands.stale_days` threshold. | Use for the `N no activity > Nd` counter and `🕒` badge. |
+| Stale PR | A repository-card PR whose `updated_at` activity is older than the configured `dashboard.issue_bands.stale_days` threshold. | Use for the PR `🕒` badge. |
+
+Keep **ClankeR** only when naming the contributor relay product/brand, for example the contributor portal line “Powered by ClankeR.” Avoid casual lowercase `clanker` as an operator-facing noun.
+
+## Sidebar map
+
+The operator sidebar keeps the existing destinations, IDs, `data-action` handlers, and route hashes, but groups them by operator task:
+
+| Group | Items |
+| --- | --- |
+| Dashboard | Overview, Governor, Throughput |
+| Agents | Dynamic agent tree, `+ Add agent`, `+ Group` |
+| Resources | Projects, Contributors |
+| Intelligence | Advisory, ACMM Eval, Inception, Knowledge, Strategy Lab |
+| Admin | Tokens, Cost, Review Queue, Agents, Audit Log, Diagnostics |
+| Help | FAQ, Getting Started, API Spec (Redoc), Getting Started Guide, Join our Discord, Report an Issue |
+
+On the v6 line the sidebar also lists Runs and Platform. Sections hidden by the ACMM level or a feature setting are hidden from the sidebar too.
+
+Count badges use the shared `.badge-count` recipe. Zero counts render as dimmed `0` badges with `data-zero`.
+
+Internal `clanker-*` CSS classes, DOM ids, data keys, and JavaScript names are stable compatibility identifiers. They are not user-facing names and should remain as-is.