docs(ui): rename gittensory prose to loopover across docs routes

[JSONbored]

Summary

• Part of the gittensory→loopover rebrand (Epic: complete the gittensory -> loopover rebrand (full cutover, no dual-support) #5705), phase 8b: rename brand-name prose across 22 docs route .tsx files under apps/loopover-ui (self-hosting guides, MCP client docs, quickstart, troubleshooting, release checklist, etc.).
• Several examples had genuinely gone stale rather than being purely cosmetic — the docker-compose service is already named loopover (not gittensory) and the miner/mcp CLI binaries are already loopover-miner/loopover-mcp, so a handful of copy-pasteable command examples in the docs were telling self-hosters to run commands that no longer exist. Fixed those to match the real current names.
• Updated 3 doc-content assertion tests (docs-beta-onboarding.test.ts, docs-miner-quickstart.test.ts, docs-selfhost-update-rollback.test.ts) whose expected strings/titles still referenced the old command names — they were asserting against text this PR corrects.
• Left untouched (deliberate, permanent): the gittensory-selfhost container-image legacy tag examples, and the gittensory.aethereal.dev / gittensory-api.aethereal.dev domain aliases.

Scope

• The PR title follows type(scope): short summary Conventional Commit format.
• This PR is focused and does not mix unrelated backend, UI, MCP, docs, dependency, and deploy changes.
• This follows CONTRIBUTING.md and does not reintroduce GitHub Pages, VitePress, site/, or CNAME.
• I linked a currently open issue this PR resolves — N/A, maintainer-authored rebrand-epic cleanup (Epic: complete the gittensory -> loopover rebrand (full cutover, no dual-support) #5705), no linked-issue gate applies to owner PRs.

Validation

• git diff --check
• npm run actionlint (via npm run test:ci)
• npm run typecheck (via npm run test:ci)
• npm run test:coverage — full unsharded run, 100% green; docs/test-only diff, no src/** lines changed
• npm run test:workers (via npm run test:ci)
• npm run build:mcp (via npm run test:ci)
• npm run test:mcp-pack (via npm run test:ci)
• npm run ui:openapi:check (via npm run test:ci)
• npm run ui:lint (via npm run test:ci)
• npm run ui:typecheck (via npm run test:ci)
• npm run ui:build (via npm run test:ci)
• npm audit --audit-level=moderate
• Full npm run test:ci gate run locally, exit 0

Safety

• No secrets, wallet details, hotkeys, coldkeys, user PATs, private keys, raw trust scores, private rankings, or private maintainer evidence are exposed.
• Public GitHub text stays sanitized, low-noise, and does not imply compensation guarantees or optimization tactics.
• Auth, cookie, CORS, GitHub App, Cloudflare, or session changes include negative-path tests. — N/A, no such changes.
• API/OpenAPI/MCP behavior is updated and tested where needed. — N/A, no behavior change; openapi.json untouched.
• UI changes use live API data or real empty/error/loading states. — N/A, text-only doc content changes, no UI evidence needed (no visual/layout change).
• Visible UI changes include a UI Evidence section. — N/A, text-only prose changes, not a visual/layout change.
• Public docs/changelogs are updated where needed; changelogs are only edited for release-prep PRs (none touched here).

Notes

• One of several batched PRs covering the bulk-prose portion of rebrand epic Epic: complete the gittensory -> loopover rebrand (full cutover, no dual-support) #5705.

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.