[codex] Polish issue and operator workflow UI (#4090)

## Thinking Path

> - Paperclip operators spend much of their time in issues, inboxes,
selectors, and rich comment threads.
> - Small interaction problems in those surfaces slow down supervision
of AI-agent work.
> - The branch included related operator quality-of-life fixes for issue
layout, inbox actions, recent selectors, mobile inputs, and chat
rendering stability.
> - These changes are UI-focused and can land independently from
workspace navigation and access-profile work.
> - This pull request groups the operator QoL fixes into one standalone
branch.
> - The benefit is a more stable and efficient board workflow for issue
triage and task editing.

## What Changed

- Widened issue detail content and added a desktop inbox archive action.
- Fixed mobile text-field zoom by keeping touch input font sizes at
16px.
- Prioritized recent picker selections for assignees/projects in issue
and routine flows.
- Showed actionable approvals in the Mine inbox model.
- Fixed issue chat renderer state crashes and hardened tests.

## Verification

- `pnpm install --frozen-lockfile`
- `pnpm exec vitest run ui/src/components/IssueChatThread.test.tsx
ui/src/lib/inbox.test.ts ui/src/lib/recent-selections.test.ts`
- Split integration check: merged last after the other
[PAP-1614](/PAP/issues/PAP-1614) branches with no merge conflicts.
- Confirmed this branch does not include `pnpm-lock.yaml`.

## Risks

- Low to medium risk: mostly UI state, layout, and selection-priority
behavior.
- Visual layout and mobile zoom behavior may need browser/device QA
beyond component tests.
- No database migrations are included.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- OpenAI Codex, GPT-5.4 tool-enabled coding model, agentic
code-editing/runtime with local shell and GitHub CLI access; exact
context window and reasoning mode are not exposed by the Paperclip
harness.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Paperclip <noreply@paperclip.ing>

ui/src/components/InlineEntitySelector.tsx

@@ -1,6 +1,7 @@
 import { forwardRef, useEffect, useMemo, useRef, useState, type ReactNode } from "react";
 import { Check } from "lucide-react";
 import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
+import { orderItemsBySelectedAndRecent } from "../lib/recent-selections";
 import { cn } from "../lib/utils";
 
 export interface InlineEntityOption {
@@ -21,6 +22,7 @@ interface InlineEntitySelectorProps {
   className?: string;
   renderTriggerValue?: (option: InlineEntityOption | null) => ReactNode;
   renderOption?: (option: InlineEntityOption, isSelected: boolean) => ReactNode;
+  recentOptionIds?: string[];
   /** Skip the Portal so the popover stays in the DOM tree (fixes scroll inside Dialogs). */
   disablePortal?: boolean;
   /** Open the popover when the trigger receives keyboard/programmatic focus. */
@@ -41,6 +43,7 @@ export const InlineEntitySelector = forwardRef<HTMLButtonElement, InlineEntitySe
       className,
       renderTriggerValue,
       renderOption,
+      recentOptionIds = [],
       disablePortal,
       openOnFocus = true,
     },
@@ -53,10 +56,10 @@ export const InlineEntitySelector = forwardRef<HTMLButtonElement, InlineEntitySe
     const shouldPreventCloseAutoFocusRef = useRef(false);
     const isPointerDownRef = useRef(false);
 
-    const allOptions = useMemo<InlineEntityOption[]>(
-      () => [{ id: "", label: noneLabel, searchText: noneLabel }, ...options],
-      [noneLabel, options],
-    );
+    const allOptions = useMemo<InlineEntityOption[]>(() => {
+      const baseOptions = [{ id: "", label: noneLabel, searchText: noneLabel }, ...options];
+      return orderItemsBySelectedAndRecent(baseOptions, value, recentOptionIds);
+    }, [noneLabel, options, recentOptionIds, value]);
 
     const filteredOptions = useMemo(() => {
       const term = query.trim().toLowerCase();