Task: Make saved agent changes and apply action visible

Identity

Task ID: 20260918-agent-apply-visible-5a83c1e2
Mode: Feature
Branch: codex/20260918-agent-apply-visible-5a83c1e2-agent-apply-visible
Worktree: D:\Datas\OthersProjects.codex-worktrees\makelore\20260918-agent-apply-visible-5a83c1e2
Base commit: c878ba940c
Owner: codex
Status: Ready for Integration

Make the existing publish/apply action directly available in the MakeLore assistant workspace header.
Distinguish unsaved draft, saved-but-unapplied draft, confirmed applied revision, and unknown/failed application state.
Renderer components, focused tests, Electron fixture, and README only; no backend, model activation, billing, or channel routing changes.

User confirmed that applying the latest changes fixed the WeChat model error; requested a more visible interaction.
Continue using the existing Host API publish/access contracts. Saving remains separate from applying.
Compare the current draft revision with the draft_revision of the current published version, not its version number.
Share one in-flight/idempotent application operation between the header and access panel; retries retain the original input.
Preserve draft inputs, current trial, immutable published versions, and first-publication behavior.
Concurrent Task Gate and Planning Gate passed before implementation. Peer task records were inspected read-only; historical incomplete records were treated as unknown coordination state, without a concrete dependency on this owned change.

Added the prominent header action and amber pending-change explanation on all workspace tabs.
Successful application removes the pending notice; unchanged applied drafts disable repeat application.
Read failures remain visible and retryable; a successful publish followed by failed status refresh remains confirmed and cannot accidentally publish again.
Existing access page reuses the same operation and recovery state.
Updated README and verified the actual Electron interface at 1366x768 and 1024x768.
No merge, push, deployment, or worktree cleanup performed.

pnpm 10.33.4 install --frozen-lockfile passed; lockfile unchanged.
pnpm run typecheck passed.
Scoped ESLint on changed implementation and test files passed.
Four relevant unit files: 51 tests passed. Added a final successful-publish/failed-refresh regression, then reran cloud-agents-page.test.tsx: 24 tests passed (52 distinct related tests across the final files).
pnpm run build:vite passed. Existing Browserslist age and bundle-size/import warnings remain.
Electron cloud-agents.spec.ts passed: creation, initial publication, save/apply, compact viewport, chat and schedules.
Inspected cloud-agent-apply-visible.png and cloud-agent-apply-compact.png: header action and saved/unapplied state are visible with no overlap.
Reviewed the complete implementation diff and new publication hook. Server contracts were source-checked in the companion read-only diagnostic tasks; no live cloud changes were made.

None. This is an interaction improvement using existing publication semantics; README records current product behavior. No canonical architecture or domain changes are proposed.