revert(app): remove shared link button in session header

Drop the inline share-url copy icon next to session context, returning the session header controls to context + options only.

packages/app/src/pages/session/message-timeline.tsx

@@ -17,7 +17,6 @@ import { showToast } from "@opencode-ai/ui/toast"
 import { Binary } from "@opencode-ai/util/binary"
 import { getFilename } from "@opencode-ai/util/path"
 import { Popover as KobaltePopover } from "@kobalte/core/popover"
-import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { shouldMarkBoundaryGesture, normalizeWheelDelta } from "@/pages/session/message-gesture"
 import { SessionContextUsage } from "@/components/session-context-usage"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
@@ -301,7 +300,6 @@ export function MessageTimeline(props: {
   const titleValue = createMemo(() => info()?.title)
   const shareUrl = createMemo(() => info()?.share?.url)
   const shareEnabled = createMemo(() => sync.data.config.share !== "disabled")
-  const shared = createMemo(() => shareEnabled() && !!shareUrl())
   const parentID = createMemo(() => info()?.parentID)
   const showHeader = createMemo(() => !!(titleValue() || parentID()))
   const stageCfg = { init: 1, batch: 3 }
@@ -327,11 +325,6 @@ export function MessageTimeline(props: {
     dismiss: null as "escape" | "outside" | null,
   })
 
-  const [clip, setClip] = createStore({
-    ok: false,
-    timer: undefined as number | undefined,
-  })
-
   let more: HTMLButtonElement | undefined
 
   const [req, setReq] = createStore({ share: false, unshare: false })
@@ -372,42 +365,6 @@ export function MessageTimeline(props: {
     platform.openLink(url)
   }
 
-  createEffect(() => {
-    const url = shareUrl()
-    if (url) return
-    if (clip.timer) window.clearTimeout(clip.timer)
-    setClip({ ok: false, timer: undefined })
-  })
-
-  onCleanup(() => {
-    if (!clip.timer) return
-    window.clearTimeout(clip.timer)
-  })
-
-  const copy = () => {
-    const url = shareUrl()
-    if (!url) return
-    navigator.clipboard
-      .writeText(url)
-      .then(() => {
-        if (clip.timer) window.clearTimeout(clip.timer)
-        setClip("ok", true)
-        setClip(
-          "timer",
-          window.setTimeout(() => {
-            setClip({ ok: false, timer: undefined })
-          }, 3000),
-        )
-      })
-      .catch((err: unknown) =>
-        showToast({
-          variant: "error",
-          title: language.t("common.requestFailed"),
-          description: err instanceof Error ? err.message : String(err),
-        }),
-      )
-  }
-
   const errorMessage = (err: unknown) => {
     if (err && typeof err === "object" && "data" in err) {
       const data = (err as { data?: { message?: string } }).data
@@ -771,45 +728,8 @@ export function MessageTimeline(props: {
                   </div>
                   <Show when={sessionID()}>
                     {(id) => (
-                      <div class="shrink-0 flex items-center gap-0">
-                        <div class="mr-3">
-                          <SessionContextUsage placement="bottom" />
-                        </div>
-                        <div
-                          class="shrink-0 flex items-center justify-center overflow-hidden transition-[width,margin] duration-200 ease-[cubic-bezier(0.22,1,0.36,1)]"
-                          style={{
-                            width: shared() ? "24px" : "0px",
-                            "margin-right": shared() ? "12px" : "0px",
-                          }}
-                          aria-hidden={!shared()}
-                        >
-                          <div
-                            class="transition-opacity duration-100 ease-out"
-                            classList={{
-                              "opacity-0 pointer-events-none": !shared(),
-                            }}
-                          >
-                            <Tooltip
-                              placement="bottom"
-                              gutter={8}
-                              value={
-                                clip.ok
-                                  ? language.t("session.share.copy.copied")
-                                  : language.t("session.share.copy.copyLink")
-                              }
-                            >
-                              <IconButton
-                                icon={clip.ok ? "check" : "link"}
-                                variant="ghost"
-                                class="size-6 rounded-md"
-                                tabIndex={shared() ? 0 : -1}
-                                disabled={!shared()}
-                                aria-label={language.t("session.share.copy.copyLink")}
-                                onClick={copy}
-                              />
-                            </Tooltip>
-                          </div>
-                        </div>
+                      <div class="shrink-0 flex items-center gap-3">
+                        <SessionContextUsage placement="bottom" />
                         <DropdownMenu
                           gutter={4}
                           placement="bottom-end"