feat(ui): add data table components

[kattsushi]

Part of tracker #2. Targets feat/ui-package.

Closes #1

Approved issue: #1

PR Type

• Bug fix
• New feature
• Documentation only
• Code refactoring
• Maintenance/tooling
• Breaking change

Summary

• Adds the final planned custom data-table slice for @os-copilot/ui.
• Implements DataTable using @tanstack/solid-table and existing table primitives.
• Implements DataTableFilters with touch-friendly, collapsible mobile controls.

Chain Context

master
└── 📍 tracker #2: feat/ui-package
    ├── ✅ PR #3: scaffold package + shadcn routing
    ├── ✅ PR #4: Zaidan baseline + Storybook/CSS
    ├── ✅ PR #5: layout primitives + SSR/SPA verification
    ├── ✅ PR #6: component ergonomic subpath exports
    ├── ✅ PR #7: copy-id-button + marquee + Zaidan/Sonner toast
    └── 🔎 PR #8: data-table + data-table-filters

Changes

File	Change
packages/ui/src/components/ui/data-table.tsx	Adds TanStack Solid Table wrapper with mobile stacked/card fallback and desktop table rendering.
packages/ui/src/components/ui/data-table-filters.tsx	Adds typed filter controls with touch-friendly controls and mobile collapsible container.
packages/ui/src/stories/ui/*	Adds stories for data table and filters.
packages/ui/src/testing/*	Extends SSR/SPA/import smoke coverage.
packages/ui/package.json, pnpm-workspace.yaml, pnpm-lock.yaml	Adds @tanstack/solid-table via catalog and public subpath exports.
packages/ui/vite.config.ts	Externalizes TanStack table for library build.

Test Plan

• pnpm exec dprint check packages/ui/package.json pnpm-workspace.yaml packages/ui/src
• pnpm exec oxlint packages/ui/src
• pnpm nx test ui --run
• pnpm nx typecheck ui
• pnpm nx build ui
• pnpm nx build-storybook ui
• Fresh reviewer audit completed with no blockers.

Notes

• No virtualization, server-side query orchestration, or advanced pagination is included in this slice.
• Storybook still emits the known non-blocking @kobalte/core package.json warning.

Contributor Checklist

• Linked tracker PR feat(ui): track UI package chain #2 and approved issue feat(ui): add reusable Solid UI package #1
• Added exactly one type:* label
• Ran shellcheck on modified scripts (not applicable: no shell scripts changed)
• Skills tested in at least one agent
• Docs updated if behavior changed
• Conventional commit format
• No Co-Authored-By trailers