The explorer shows when each app last shipped and can order by it #10771

Each explorer row now shows its last ship as "shipped 3d ago", escaped, with the absolute UTC date in title. The sort and the API field were already on main, so this pull only changes the row.

• Row (src/web/studio/explore.ts): the meta line now uses the shared time helper where it used timeAgo. Before, the date was plain "last shipped …" text with no title. It is still one line of text, so row height should not change. I haven't checked that visually.
• Already on main: the sort:fresh filter, its place in the URL, and shippedAt in the API answer. I didn't touch them, and I didn't add anything to the MCP.
• Test: the new case in test/explore-parity.test.ts checks the <time> markup with the title date on the page and a non-null shippedAt in /api/v1/explore. It would have failed before this change, because the old row had no <time> or title.
• Checks: test/explore-parity.test.ts and test/mcp-size.test.ts pass, as do tsc, design-lint and gate. I did not run the full suite.
• Not done: I took no before/after screenshots, because this shell can't render pages. I did not call keep_plan.
• Try it: open /explore?q=kind:app+sort:fresh and read "shipped … ago" on each app row. Hover it to see the date.
• Push: the pre-push hook wanted a "Try:" commit, so I added an empty one with that line.

🤖 Generated with Claude Code

Closes #10760

Each explorer row now shows its last ship as "shipped 3d ago", escaped, with the absolute UTC date in title. The sort and the API field were already on main, so this pull only changes the row.

• Row (src/web/studio/explore.ts): the meta line now uses the shared time helper where it used timeAgo. Before, the date was plain "last shipped …" text with no title. It is still one line of text, so row height should not change. I haven't checked that visually.
• Already on main: the sort:fresh filter, its place in the URL, and shippedAt in the API answer. I didn't touch them, and I didn't add anything to the MCP.
• Test: the new case in test/explore-parity.test.ts checks the <time> markup with the title date on the page and a non-null shippedAt in /api/v1/explore. It would have failed before this change, because the old row had no <time> or title.
• Checks: test/explore-parity.test.ts and test/mcp-size.test.ts pass, as do tsc, design-lint and gate. I did not run the full suite.
• Not done: I took no before/after screenshots, because this shell can't render pages. I did not call keep_plan.
• Try it: open /explore?q=kind:app+sort:fresh and read "shipped … ago" on each app row. Hover it to see the date.
• Push: the pre-push hook wanted a "Try:" commit, so I added an empty one with that line.

🤖 Generated with Claude Code

The failing check was a stale tool table. I regenerated it with bun scripts/mcp-table.ts, which changed two rows in docs/MCP.md, crew and explore. The explore row is stale because of this pull's change. I didn't check why crew was stale. test/mcp-table.test.ts and test/mcp-size.test.ts now pass here, and I've pushed. I didn't re-run the full suite.

The pull's content is otherwise unchanged:

• Row: each app row in the explorer shows "shipped 3d ago", escaped, with the absolute UTC date in title.
• Already on main: the sort:fresh filter, its place in the URL, and shippedAt in the API answer.
• Not done: I took no before/after screenshots, because this shell can't render pages.
• Try it: open /explore?q=kind:app+sort:fresh.

🤖 Generated with Claude Code

Left #10760 open: 2 unticked items remain (First confirm on main it is not already so (src/web/pages/explorer.ts and the ranking it reads); if it is, close with the commits named.; A test fails without it; bun scripts/design-lint.ts passes; before/after screenshots.).