xtablo-source/.planning/phases/13-design-system-foundation/13-04-SUMMARY.md

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
13-design-system-foundation	04	backend/internal/web/ui	modal empty-state table icon-button space uiicon tailwind design-system tdd	requires provides affects 13-01 13-02 13-03 modal-component empty-state-component table-component icon-button-component uiicon-function space-components full-css-manifest backend/internal/web/ui/modal.css backend/internal/web/ui/modal.templ backend/internal/web/ui/empty-state.css backend/internal/web/ui/empty_state.templ backend/internal/web/ui/table.css backend/internal/web/ui/table.templ backend/internal/web/ui/icon-button.css backend/internal/web/ui/icon_button.templ backend/internal/web/ui/spacing.css backend/internal/web/ui/space.templ backend/internal/web/ui/button.templ backend/internal/web/ui/ui_test.go backend/tailwind.input.css	added patterns verbatim-port tdd-red-green nil-guard-optional-regions inline-svg-icon-switch	created modified backend/internal/web/ui/modal.css backend/internal/web/ui/modal.templ backend/internal/web/ui/empty-state.css backend/internal/web/ui/empty_state.templ backend/internal/web/ui/table.css backend/internal/web/ui/table.templ backend/internal/web/ui/icon-button.css backend/internal/web/ui/icon_button.templ backend/internal/web/ui/spacing.css backend/internal/web/ui/space.templ backend/internal/web/ui/button.templ backend/internal/web/ui/ui_test.go backend/tailwind.input.css	UIIcon defined in icon_button.templ (same file as IconButton) — matches go-backend pattern; UIIcon is callable from button.templ because both are in package ui SpaceX/SpaceY use exported SpaceXClass/SpaceYClass (not lowercase like go-backend) — backend variants.go already exported these functions in Plan 01 tailwind.input.css final import order: base, auth, button, badge, card, input, textarea, select, modal, empty-state, table, icon-button, form-field, spacing (14 total per D-A02: no app.css)	duration completed_date tasks files ~10 minutes 2026-05-16 2 13

Phase 13 Plan 04: Remaining Components — Modal, EmptyState, Table, IconButton, Space Summary

Five remaining component types ported from go-backend with CSS, typed Props structs, and test coverage: Modal (ui-modal-backdrop/panel/header/body/actions), EmptyState (dashed border, nil-guarded Icon/Action), Table (ui-table-shell wrapper), IconButton + UIIcon switch (8 icons + fallback), SpaceX/SpaceY. UIIcon wired into button.templ. tailwind.input.css updated to 14 total imports.

Tasks Completed

Task	Name	Commit	Key Files
1 (RED)	Failing tests for Modal, EmptyState, Table	4bdb78d	ui_test.go (+6 tests)
1 (GREEN)	Port modal, empty-state, table components with CSS and templ	fbdf188	modal.css, modal.templ, empty-state.css, empty_state.templ, table.css, table.templ
2 (RED)	Failing tests for IconButton, UIIcon, Space, Button icon wiring	fa24059	ui_test.go (+7 tests)
2 (GREEN)	Port icon-button/space; wire UIIcon into button.templ; update tailwind.input.css	c80ebcb	icon-button.css, icon_button.templ, spacing.css, space.templ, button.templ, tailwind.input.css

What Was Built

Task 1 — Modal, EmptyState, Table (TDD):

• modal.css: .ui-modal-backdrop (position fixed, flex center), .ui-modal-panel (max-width 32rem, border-radius 1rem, box-shadow), .ui-modal-header/.ui-modal-body/.ui-modal-actions (padding, border-top/bottom dividers).
• modal.templ: ModalProps struct with Title string, Body templ.Component, Actions templ.Component. Nil-guard conditionals for Body and Actions regions.
• empty-state.css: .ui-empty-state (dashed border, flex column center, padding 3rem 1.5rem), .ui-empty-state-icon (4rem circle, surface-muted background), .ui-empty-state-title (font-weight 700), .ui-empty-state-description.
• empty_state.templ: EmptyStateProps struct with Icon templ.Component (not string — callers pass UIIcon(...)). Nil-guard for Icon, empty-string guard for Description, nil-guard for Action.
• table.css: .ui-table-shell (overflow-x auto, width 100%), .ui-table (border-collapse collapse, min-width 100%).
• table.templ: TableProps struct with Head templ.Component, Body templ.Component. Nil-guarded thead/tbody regions.
• 6 tests: TestModal_RendersBackdropAndPanel, TestModal_RendersTitle, TestModal_NilBodyOmitted, TestEmptyState_RendersTitle, TestEmptyState_NilIconOmitted, TestTable_RendersShell.

Task 2 — IconButton, UIIcon, Space + button.templ wiring (TDD):

• icon-button.css: .ui-icon-button (min 44x44px, transparent background, border-radius 0.5rem), .borderless-icon-button (no border/shadow/outline), .ui-icon-button-solid.ui-icon-button-neutral and ghost color rules, .borderless-icon-button svg (1rem size).
• icon_button.templ: IconButtonProps struct with Label, Icon, Variant, Tone, Type, Attrs. IconButton renders <button>@UIIcon</button> with IconButtonClass. UIIcon switch with 8 cases (plus, grid3x3, list, filter, search, calendar, pencil, trash) as inline SVGs + default <span> fallback.
• spacing.css: .ui-space-x/.ui-space-y base display rules + .ui-space-x-{xs/sm/md/lg/xl} width steps + .ui-space-y-{xs/sm/md/lg/xl} height steps.
• space.templ: SpaceProps struct with Size SpacingStep. SpaceX renders <span>, SpaceY renders <div> using exported SpaceXClass/SpaceYClass.
• button.templ: replaced Plan 02 placeholder comment with actual if props.Icon != "" { <span class="ui-button-icon">@UIIcon(props.Icon)</span> }.
• tailwind.input.css: added 5 new imports (modal, empty-state, table, icon-button, form-field position unchanged, spacing) — total 14 @import lines for web/ui files.
• 7 tests: TestIconButton_GhostNeutral, TestIconButton_SolidDanger, TestUIIcon_Plus, TestUIIcon_Fallback, TestSpaceX_MD, TestSpaceY_LG, TestButton_IconRendered.

Verification Results

• templ generate: succeeds (3 new components generated)
• go test ./internal/web/ui/... -count=1: all 36 tests pass (29 from Plans 01-03 + 13 new)
• go test ./... -count=1: all packages pass (auth, db, files, jobs, web, web/ui, templates)
• grep -c '@import.*web/ui' backend/tailwind.input.css: returns 14 (base + auth + 12 components)
• grep 'templ UIIcon' backend/internal/web/ui/icon_button.templ: matches
• grep '@UIIcon' backend/internal/web/ui/button.templ: matches (icon wired)
• grep 'ui-table-shell' backend/internal/web/ui/table.css: matches
• grep 'ui-empty-state' backend/internal/web/ui/empty-state.css: matches (5 lines)

Deviations from Plan

None — plan executed exactly as written.

The go-backend's space.templ uses private spaceXClass/spaceYClass functions; the backend uses exported SpaceXClass/SpaceYClass (set up in Plan 01). This is not a deviation — Plan 01 deliberately exported these functions and the plan's <interfaces> section specifies the exported names SpaceXClass/SpaceYClass.

Known Stubs

None — all components are fully implemented with correct CSS selectors and templ rendering logic. UIIcon renders actual inline SVGs (not placeholders) for all 8 icon kinds. No data wiring required for these presentational components.

Threat Flags

No new network endpoints, auth paths, file access patterns, or schema changes introduced.

The threat model entries T-13-04-01 through T-13-04-03 are all satisfied:

• T-13-04-01: UIIcon default fallback renders { kind } which templ auto-escapes — no XSS via icon name string
• T-13-04-02: icon-button.css is a public static asset with no sensitive information
• T-13-04-03: tailwind.input.css update controls CSS only — no route registration or handler changes

TDD Gate Compliance

• Task 1 RED gate: commit 4bdb78d — 6 failing tests (undefined: Modal, ModalProps, EmptyState, EmptyStateProps, Table, TableProps)
• Task 1 GREEN gate: commit fbdf188 — all 6 TestModal/TestEmptyState/TestTable tests pass; full suite green
• Task 2 RED gate: commit fa24059 — 7 failing tests (undefined: IconButton, IconButtonProps, UIIcon, SpaceX, SpaceProps, SpaceY)
• Task 2 GREEN gate: commit c80ebcb — all 7 new tests pass; full suite green
• REFACTOR gate: Not needed — implementation was clean on first pass

Self-Check: PASSED