feat(portfolio): 기술 스택을 SimpleIcons 로고 무한 캐러셀로 표시

LogoLoop 컴포넌트를 추가해 카테고리별(언어/프레임워크/인프라/도구) 4줄
가로 스크롤 캐러셀로 skill 로고를 표시. simpleicons CDN을 사용하며
매칭 안 되는 항목(APScheduler, KIS Open API)은 텍스트 칩으로 자동 fallback.
편집 모드에서는 기존 칩 UI를 유지해 편집·삭제 가능.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/LogoLoop.css

@@ -0,0 +1,147 @@
+.logoloop {
+    position: relative;
+    overflow: hidden;
+}
+
+.logoloop:not(.logoloop--vertical) {
+    overflow-x: hidden;
+}
+
+.logoloop--vertical {
+    overflow-y: hidden;
+    height: 100%;
+    display: inline-block;
+}
+
+.logoloop__track {
+    display: flex;
+    flex-direction: row;
+    width: max-content;
+    will-change: transform;
+    user-select: none;
+    position: relative;
+    z-index: 0;
+}
+
+.logoloop__track--vertical {
+    flex-direction: column;
+    width: 100%;
+    height: max-content;
+}
+
+@media (prefers-reduced-motion: reduce) {
+    .logoloop__track {
+        transform: none !important;
+    }
+}
+
+.logoloop__list {
+    display: flex;
+    align-items: center;
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+.logoloop__list--vertical {
+    flex-direction: column;
+}
+
+.logoloop__item {
+    flex: none;
+    font-size: var(--logoloop-logoHeight, 36px);
+    line-height: 1;
+}
+
+.logoloop__list:not(.logoloop__list--vertical) .logoloop__item {
+    margin-right: var(--logoloop-gap, 32px);
+}
+
+.logoloop__list--vertical .logoloop__item {
+    margin-bottom: var(--logoloop-gap, 32px);
+}
+
+.logoloop__item--scalable {
+    overflow: visible;
+}
+
+.logoloop__link {
+    display: inline-flex;
+    align-items: center;
+    text-decoration: none;
+    border-radius: 4px;
+    transition: opacity 0.2s linear;
+    color: inherit;
+}
+
+.logoloop__link:hover {
+    opacity: 0.8;
+}
+
+.logoloop__link:focus-visible {
+    outline: 2px solid currentColor;
+    outline-offset: 2px;
+}
+
+.logoloop__node {
+    display: inline-flex;
+    align-items: center;
+}
+
+.logoloop__node--scale,
+.logoloop__img--scale {
+    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.logoloop__item--scalable:hover .logoloop__node--scale,
+.logoloop__item--scalable:hover .logoloop__img--scale {
+    transform: scale(1.18);
+}
+
+.logoloop__img {
+    height: var(--logoloop-logoHeight, 36px);
+    width: auto;
+    display: block;
+    object-fit: contain;
+    -webkit-user-drag: none;
+    pointer-events: none;
+    image-rendering: -webkit-optimize-contrast;
+}
+
+.logoloop__fade {
+    position: absolute;
+    pointer-events: none;
+    z-index: 10;
+}
+
+.logoloop__fade--left {
+    top: 0;
+    bottom: 0;
+    left: 0;
+    width: clamp(24px, 8%, 120px);
+    background: linear-gradient(to right, var(--logoloop-fadeColor, var(--bg-primary, #0b0b0b)) 0%, transparent 100%);
+}
+
+.logoloop__fade--right {
+    top: 0;
+    bottom: 0;
+    right: 0;
+    width: clamp(24px, 8%, 120px);
+    background: linear-gradient(to left, var(--logoloop-fadeColor, var(--bg-primary, #0b0b0b)) 0%, transparent 100%);
+}
+
+.logoloop__fade--top {
+    left: 0;
+    right: 0;
+    top: 0;
+    height: clamp(24px, 8%, 120px);
+    background: linear-gradient(to bottom, var(--logoloop-fadeColor, var(--bg-primary, #0b0b0b)) 0%, transparent 100%);
+}
+
+.logoloop__fade--bottom {
+    left: 0;
+    right: 0;
+    bottom: 0;
+    height: clamp(24px, 8%, 120px);
+    background: linear-gradient(to top, var(--logoloop-fadeColor, var(--bg-primary, #0b0b0b)) 0%, transparent 100%);
+}

src/components/LogoLoop.jsx

@@ -0,0 +1,322 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import './LogoLoop.css';
+
+const ANIMATION_CONFIG = {
+    SMOOTH_TAU: 0.25,
+    MIN_COPIES: 2,
+    COPY_HEADROOM: 2,
+};
+
+const toCssLength = (value) =>
+    typeof value === 'number' ? `${value}px` : value ?? undefined;
+
+const cx = (...parts) => parts.filter(Boolean).join(' ');
+
+function useResizeObserver(callback, elements, deps) {
+    useEffect(() => {
+        if (!window.ResizeObserver) {
+            const handler = () => callback();
+            window.addEventListener('resize', handler);
+            callback();
+            return () => window.removeEventListener('resize', handler);
+        }
+        const observers = elements.map((ref) => {
+            if (!ref.current) return null;
+            const observer = new ResizeObserver(callback);
+            observer.observe(ref.current);
+            return observer;
+        });
+        callback();
+        return () => {
+            observers.forEach((o) => o?.disconnect());
+        };
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, deps);
+}
+
+function useImageLoader(seqRef, onLoad, deps) {
+    useEffect(() => {
+        const images = seqRef.current?.querySelectorAll('img') ?? [];
+        if (images.length === 0) {
+            onLoad();
+            return;
+        }
+        let remaining = images.length;
+        const handleLoad = () => {
+            remaining -= 1;
+            if (remaining === 0) onLoad();
+        };
+        images.forEach((img) => {
+            if (img.complete) {
+                handleLoad();
+            } else {
+                img.addEventListener('load', handleLoad, { once: true });
+                img.addEventListener('error', handleLoad, { once: true });
+            }
+        });
+        return () => {
+            images.forEach((img) => {
+                img.removeEventListener('load', handleLoad);
+                img.removeEventListener('error', handleLoad);
+            });
+        };
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, deps);
+}
+
+function useAnimationLoop(trackRef, targetVelocity, seqWidth, seqHeight, isHovered, hoverSpeed, isVertical) {
+    const rafRef = useRef(null);
+    const lastTsRef = useRef(null);
+    const offsetRef = useRef(0);
+    const velocityRef = useRef(0);
+
+    useEffect(() => {
+        const track = trackRef.current;
+        if (!track) return;
+
+        const prefersReduced =
+            typeof window !== 'undefined' &&
+            window.matchMedia &&
+            window.matchMedia('(prefers-reduced-motion: reduce)').matches;
+
+        const seqSize = isVertical ? seqHeight : seqWidth;
+
+        if (seqSize > 0) {
+            offsetRef.current = ((offsetRef.current % seqSize) + seqSize) % seqSize;
+            track.style.transform = isVertical
+                ? `translate3d(0, ${-offsetRef.current}px, 0)`
+                : `translate3d(${-offsetRef.current}px, 0, 0)`;
+        }
+
+        if (prefersReduced) {
+            track.style.transform = 'translate3d(0, 0, 0)';
+            return () => {
+                lastTsRef.current = null;
+            };
+        }
+
+        const animate = (ts) => {
+            if (lastTsRef.current === null) lastTsRef.current = ts;
+            const dt = Math.max(0, ts - lastTsRef.current) / 1000;
+            lastTsRef.current = ts;
+
+            const target = isHovered && hoverSpeed !== undefined ? hoverSpeed : targetVelocity;
+            const easing = 1 - Math.exp(-dt / ANIMATION_CONFIG.SMOOTH_TAU);
+            velocityRef.current += (target - velocityRef.current) * easing;
+
+            if (seqSize > 0) {
+                let next = offsetRef.current + velocityRef.current * dt;
+                next = ((next % seqSize) + seqSize) % seqSize;
+                offsetRef.current = next;
+                track.style.transform = isVertical
+                    ? `translate3d(0, ${-offsetRef.current}px, 0)`
+                    : `translate3d(${-offsetRef.current}px, 0, 0)`;
+            }
+            rafRef.current = requestAnimationFrame(animate);
+        };
+
+        rafRef.current = requestAnimationFrame(animate);
+        return () => {
+            if (rafRef.current !== null) cancelAnimationFrame(rafRef.current);
+            rafRef.current = null;
+            lastTsRef.current = null;
+        };
+    }, [trackRef, targetVelocity, seqWidth, seqHeight, isHovered, hoverSpeed, isVertical]);
+}
+
+export default function LogoLoop({
+    logos,
+    speed = 60,
+    direction = 'left',
+    width = '100%',
+    logoHeight = 36,
+    gap = 32,
+    pauseOnHover = true,
+    hoverSpeed,
+    fadeOut = true,
+    fadeOutColor,
+    scaleOnHover = true,
+    ariaLabel = 'Skill logos',
+    className,
+    style,
+}) {
+    const containerRef = useRef(null);
+    const trackRef = useRef(null);
+    const seqRef = useRef(null);
+
+    const [seqWidth, setSeqWidth] = useState(0);
+    const [seqHeight, setSeqHeight] = useState(0);
+    const [copyCount, setCopyCount] = useState(ANIMATION_CONFIG.MIN_COPIES);
+    const [isHovered, setIsHovered] = useState(false);
+
+    const effectiveHoverSpeed = useMemo(() => {
+        if (hoverSpeed !== undefined) return hoverSpeed;
+        if (pauseOnHover === true) return 0;
+        if (pauseOnHover === false) return undefined;
+        return 0;
+    }, [hoverSpeed, pauseOnHover]);
+
+    const isVertical = direction === 'up' || direction === 'down';
+
+    const targetVelocity = useMemo(() => {
+        const magnitude = Math.abs(speed);
+        const dirMul = isVertical
+            ? direction === 'up'
+                ? 1
+                : -1
+            : direction === 'left'
+                ? 1
+                : -1;
+        const speedMul = speed < 0 ? -1 : 1;
+        return magnitude * dirMul * speedMul;
+    }, [speed, direction, isVertical]);
+
+    const updateDimensions = useCallback(() => {
+        const containerWidth = containerRef.current?.clientWidth ?? 0;
+        const seqRect = seqRef.current?.getBoundingClientRect?.();
+        const sw = seqRect?.width ?? 0;
+        const sh = seqRect?.height ?? 0;
+        if (isVertical) {
+            const parentH = containerRef.current?.parentElement?.clientHeight ?? 0;
+            if (containerRef.current && parentH > 0) {
+                const h = Math.ceil(parentH);
+                if (containerRef.current.style.height !== `${h}px`)
+                    containerRef.current.style.height = `${h}px`;
+            }
+            if (sh > 0) {
+                setSeqHeight(Math.ceil(sh));
+                const viewport = containerRef.current?.clientHeight ?? parentH ?? sh;
+                const copies = Math.ceil(viewport / sh) + ANIMATION_CONFIG.COPY_HEADROOM;
+                setCopyCount(Math.max(ANIMATION_CONFIG.MIN_COPIES, copies));
+            }
+        } else if (sw > 0) {
+            setSeqWidth(Math.ceil(sw));
+            const copies = Math.ceil(containerWidth / sw) + ANIMATION_CONFIG.COPY_HEADROOM;
+            setCopyCount(Math.max(ANIMATION_CONFIG.MIN_COPIES, copies));
+        }
+    }, [isVertical]);
+
+    useResizeObserver(updateDimensions, [containerRef, seqRef], [logos, gap, logoHeight, isVertical]);
+    useImageLoader(seqRef, updateDimensions, [logos, gap, logoHeight, isVertical]);
+    useAnimationLoop(trackRef, targetVelocity, seqWidth, seqHeight, isHovered, effectiveHoverSpeed, isVertical);
+
+    const cssVars = useMemo(() => ({
+        '--logoloop-gap': `${gap}px`,
+        '--logoloop-logoHeight': `${logoHeight}px`,
+        ...(fadeOutColor && { '--logoloop-fadeColor': fadeOutColor }),
+    }), [gap, logoHeight, fadeOutColor]);
+
+    const containerStyle = useMemo(() => ({
+        width: isVertical
+            ? toCssLength(width) === '100%'
+                ? undefined
+                : toCssLength(width)
+            : toCssLength(width) ?? '100%',
+        ...cssVars,
+        ...style,
+    }), [width, cssVars, style, isVertical]);
+
+    const handleEnter = useCallback(() => {
+        if (effectiveHoverSpeed !== undefined) setIsHovered(true);
+    }, [effectiveHoverSpeed]);
+    const handleLeave = useCallback(() => {
+        if (effectiveHoverSpeed !== undefined) setIsHovered(false);
+    }, [effectiveHoverSpeed]);
+
+    const renderItem = (item, key) => {
+        const isNode = 'node' in item;
+        const inner = isNode ? (
+            <span
+                className={cx('logoloop__node', scaleOnHover && 'logoloop__node--scale')}
+                aria-hidden={!!item.href && !item.ariaLabel}
+            >
+                {item.node}
+            </span>
+        ) : (
+            <img
+                className={cx('logoloop__img', scaleOnHover && 'logoloop__img--scale')}
+                src={item.src}
+                srcSet={item.srcSet}
+                sizes={item.sizes}
+                width={item.width}
+                height={item.height}
+                alt={item.alt ?? ''}
+                title={item.title}
+                loading="lazy"
+                decoding="async"
+                draggable={false}
+            />
+        );
+        const itemAriaLabel = isNode ? item.ariaLabel ?? item.title : item.alt ?? item.title;
+        const wrapper = item.href ? (
+            <a
+                className="logoloop__link"
+                href={item.href}
+                aria-label={itemAriaLabel || 'logo link'}
+                target="_blank"
+                rel="noreferrer noopener"
+            >
+                {inner}
+            </a>
+        ) : (
+            inner
+        );
+        return (
+            <li
+                className={cx('logoloop__item', scaleOnHover && 'logoloop__item--scalable')}
+                key={key}
+                role="listitem"
+            >
+                {wrapper}
+            </li>
+        );
+    };
+
+    const lists = useMemo(
+        () =>
+            Array.from({ length: copyCount }, (_, i) => (
+                <ul
+                    className={cx('logoloop__list', isVertical && 'logoloop__list--vertical')}
+                    key={`copy-${i}`}
+                    role="list"
+                    aria-hidden={i > 0}
+                    ref={i === 0 ? seqRef : undefined}
+                >
+                    {logos.map((it, idx) => renderItem(it, `${i}-${idx}`))}
+                </ul>
+            )),
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+        [copyCount, logos, isVertical, scaleOnHover],
+    );
+
+    return (
+        <div
+            ref={containerRef}
+            className={cx('logoloop', isVertical && 'logoloop--vertical', className)}
+            style={containerStyle}
+            role="region"
+            aria-label={ariaLabel}
+        >
+            {fadeOut && (
+                <>
+                    <div
+                        aria-hidden
+                        className={cx('logoloop__fade', isVertical ? 'logoloop__fade--top' : 'logoloop__fade--left')}
+                    />
+                    <div
+                        aria-hidden
+                        className={cx('logoloop__fade', isVertical ? 'logoloop__fade--bottom' : 'logoloop__fade--right')}
+                    />
+                </>
+            )}
+            <div
+                className={cx('logoloop__track', isVertical && 'logoloop__track--vertical')}
+                ref={trackRef}
+                onMouseEnter={handleEnter}
+                onMouseLeave={handleLeave}
+            >
+                {lists}
+            </div>
+        </div>
+    );
+}

src/pages/portfolio/Portfolio.css

@@ -378,6 +378,39 @@
     color: #06b6d4;
 }
 
+/* ── Skill Logo Loop ─────────────────────────────────────────────────── */
+
+.pf-skill-loop {
+    background: var(--surface-card);
+    border: 1px solid var(--line);
+    border-radius: var(--radius-lg);
+    padding: 14px 0;
+    overflow: hidden;
+}
+
+.pf-skill-logo {
+    height: 36px;
+    width: auto;
+    display: block;
+    object-fit: contain;
+    pointer-events: none;
+}
+
+.pf-skill-fallback {
+    display: inline-flex;
+    align-items: center;
+    height: 36px;
+    padding: 0 14px;
+    font-size: 13px;
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    color: var(--text-bright);
+    background: rgba(6, 182, 212, 0.12);
+    border: 1px solid rgba(6, 182, 212, 0.35);
+    border-radius: 999px;
+    white-space: nowrap;
+}
+
 /* ── Filter Bar ──────────────────────────────────────────────────────── */
 
 .pf-filter-bar {

src/pages/portfolio/ProfileTab.jsx

@@ -1,4 +1,5 @@
 import { useState } from 'react';
+import LogoLoop from '../../components/LogoLoop';
 
 const CAREER_CATEGORIES = { company: '회사', education: '교육', etc: '기타' };
 const SKILL_CATEGORIES = { language: '언어', framework: '프레임워크', infra: '인프라', tool: '도구' };
@@ -6,6 +7,53 @@ const SKILL_CATEGORIES = { language: '언어', framework: '프레임워크', inf
 const emptyCareer = { category: 'company', organization: '', role: '', description: '', start_date: '', end_date: '', sort_order: 0 };
 const emptySkill = { category: 'language', name: '', level: 3, sort_order: 0 };
 
+const SKILL_LOGO_SLUGS = {
+    Python: 'python',
+    JavaScript: 'javascript',
+    SQL: 'mysql',
+    'HTML/CSS': 'html5',
+    FastAPI: 'fastapi',
+    React: 'react',
+    Vite: 'vite',
+    Docker: 'docker',
+    'Synology NAS': 'synology',
+    Nginx: 'nginx',
+    Gitea: 'gitea',
+    SQLite: 'sqlite',
+    Linux: 'linux',
+    Git: 'git',
+    'Claude API': 'anthropic',
+    Ollama: 'ollama',
+    'Suno API': 'suno',
+};
+
+function SkillLogoNode({ name, slug }) {
+    const [error, setError] = useState(false);
+    if (!slug || error) {
+        return <span className="pf-skill-fallback">{name}</span>;
+    }
+    return (
+        <img
+            className="pf-skill-logo"
+            src={`https://cdn.simpleicons.org/${slug}`}
+            alt={name}
+            title={name}
+            loading="lazy"
+            decoding="async"
+            draggable={false}
+            onError={() => setError(true)}
+        />
+    );
+}
+
+function buildSkillLogos(items) {
+    return items.map((s) => ({
+        node: <SkillLogoNode name={s.name} slug={SKILL_LOGO_SLUGS[s.name]} />,
+        ariaLabel: s.name,
+        title: s.name,
+    }));
+}
+
 export default function ProfileTab({ data, editing, api, onRefresh }) {
     const { profile, careers, skills } = data;
     const [editingProfile, setEditingProfile] = useState(null);
@@ -180,19 +228,33 @@ export default function ProfileTab({ data, editing, api, onRefresh }) {
                     items.length > 0 && (
                         <div key={cat} className="pf-skill-group">
                             <h4 className="pf-skill-group__title">{SKILL_CATEGORIES[cat]}</h4>
+                            {editing ? (
                                 <div className="pf-skill-group__tags">
                                     {items.map((s) => (
                                         <span key={s.id} className="pf-skill-tag" data-level={s.level}>
                                             {s.name}
-                                        {editing && (
                                             <span className="pf-skill-tag__actions">
                                                 <button onClick={() => setSkillForm({...s})}>&#9998;</button>
                                                 <button onClick={() => deleteSkill(s.id)}>&times;</button>
                                             </span>
-                                        )}
                                         </span>
                                     ))}
                                 </div>
+                            ) : (
+                                <div className="pf-skill-loop">
+                                    <LogoLoop
+                                        logos={buildSkillLogos(items)}
+                                        speed={40}
+                                        logoHeight={36}
+                                        gap={48}
+                                        pauseOnHover
+                                        fadeOut
+                                        fadeOutColor="var(--bg-primary, #0b0b0b)"
+                                        scaleOnHover
+                                        ariaLabel={`${SKILL_CATEGORIES[cat]} 기술 스택`}
+                                    />
+                                </div>
+                            )}
                         </div>
                     )
                 )}