W9-5: Tooltip sweep — HelpTip helper + per-view decode (#533)

* [W9-5a] Tooltip sweep foundation: HelpTip helper + shared cryptic badges

HelpTip: DRY wrapper over the verbose 3-element Radix Tooltip pattern so a
broad sweep stays a one-line wrap per site (falsy label short-circuits to the
bare child). Unit-tested (3 cases).

TaskStatusBadge + AgentStateBadge: the panel's most cryptic, most-frequent
elements (15 task lifecycle states, 11 agent states) had no explanation
anywhere. Add a per-state tooltip via HelpTip, with the canonical text in one
description map and exported as taskStatusDescription / agentStateDescription
so the per-view inline renderers (kanban, task header) reuse it instead of
re-declaring. This is part 1 of the W9-5 tooltip sweep; the per-view inline
surfaces follow in subsequent PRs.

* [W9-5b] Per-view tooltip sweep: decode cryptic badges, icon-only buttons, status dots

35 HelpTip additions across 22 panel components, reusing the W9-5a
helper plus taskStatusDescription/agentStateDescription. Tipped:
task-id/commit-hash/branch/PR badges, severity/origin/status badges,
priority (P0-P3), migration/shared flags, MegaTask umbrella badge,
Review Gate / For Resumption / Confidential note badges, icon-only
view/delete/edit/clear/show-hide buttons, semver bump + gate-state
badges, ahead-not-pushed badge. Skipped self-explanatory labeled
buttons and elements already carrying title=.

---------

Co-authored-by: Renn F <rennf93@users.noreply.github.com>

panel/src/components/git/git-actions-panel.tsx

@@ -37,6 +37,7 @@ import {
   RefreshCcw,
   GitGraph,
 } from "lucide-react";
+import { HelpTip } from "@/components/ui/help-tip";
 
 interface GitActionsPanelProps {
   status: GitStatusResponse | undefined;
@@ -228,10 +229,12 @@ export function GitActionsPanel({
           )}
           Push to Remote
           {status?.ahead !== undefined && status.ahead > 0 && (
-            <Badge variant="secondary" className="ml-auto">
-              <ArrowUp className="h-3 w-3 mr-1" />
-              {status.ahead}
-            </Badge>
+            <HelpTip label="Commits not yet pushed to the remote repository">
+              <Badge variant="secondary" className="ml-auto">
+                <ArrowUp className="h-3 w-3 mr-1" />
+                {status.ahead}
+              </Badge>
+            </HelpTip>
           )}
         </Button>
 

panel/src/components/git/git-branch-panel.tsx

@@ -23,6 +23,7 @@ import {
   DialogTrigger,
 } from "@/components/ui/dialog";
 import { GitBranch, Check, Cloud, Plus, RefreshCw } from "lucide-react";
+import { HelpTip } from "@/components/ui/help-tip";
 
 interface GitBranchPanelProps {
   branches: GitBranchListResponse | undefined;
@@ -183,9 +184,11 @@ export function GitBranchPanel({
                       </span>
                     </div>
                     {branch.last_commit && (
-                      <span className="text-xs text-muted-foreground font-mono shrink-0">
-                        {branch.last_commit.slice(0, 7)}
-                      </span>
+                      <HelpTip label="Short commit hash on this branch">
+                        <span className="text-xs text-muted-foreground font-mono shrink-0">
+                          {branch.last_commit.slice(0, 7)}
+                        </span>
+                      </HelpTip>
                     )}
                   </Button>
                 ))}

panel/src/components/git/git-log-panel.tsx

@@ -9,6 +9,7 @@ import { ScrollArea } from "@/components/ui/scroll-area";
 import { cn } from "@/lib/utils";
 import { GitCommit, User, Calendar } from "lucide-react";
 import { formatDistanceToNow } from "date-fns";
+import { HelpTip } from "@/components/ui/help-tip";
 
 interface GitLogPanelProps {
   log: GitLogResponse | undefined;
@@ -105,12 +106,14 @@ export function GitLogPanel({
                       <p className="text-sm font-medium leading-snug line-clamp-2">
                         {commit.message}
                       </p>
-                      <Badge
-                        variant="outline"
-                        className="font-mono text-xs shrink-0"
-                      >
-                        {commit.short_hash}
-                      </Badge>
+                      <HelpTip label="Short commit hash">
+                        <Badge
+                          variant="outline"
+                          className="font-mono text-xs shrink-0"
+                        >
+                          {commit.short_hash}
+                        </Badge>
+                      </HelpTip>
                     </div>
                     <div className="flex items-center gap-3 mt-1 text-xs text-muted-foreground">
                       <span className="flex items-center gap-1">