feat(03-03): build About page with tech stack badges and Contact page with form

- About: hero bio, 5 tech categories with TechBadge (UCard grid), approach cards, CTA
- Contact: hero stats, ContactForm component, contact info from siteConfig, social links, FAQ cards

app/pages/about.vue

@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import { techStack } from '~/data/techstack'
+
 const { t } = useI18n()
 
 useSeoMeta({
@@ -11,11 +13,156 @@ useSeoMeta({
   ogImageHeight: 630,
   ogType: 'website',
 })
+
+const techCategories = computed(() => [
+  {
+    key: 'programming' as const,
+    title: t('about.skills.programming'),
+    icon: 'i-lucide-code-2',
+  },
+  {
+    key: 'front' as const,
+    title: t('about.skills.frontend'),
+    icon: 'i-lucide-palette',
+  },
+  {
+    key: 'database' as const,
+    title: t('about.skills.backend'),
+    icon: 'i-lucide-database',
+  },
+  {
+    key: 'devtools' as const,
+    title: t('about.skills.tools'),
+    icon: 'i-lucide-settings',
+  },
+])
+
+const approachCards = computed(() => [
+  {
+    title: t('about.approach.performance.title'),
+    description: t('about.approach.performance.description'),
+    icon: 'i-lucide-zap',
+  },
+  {
+    title: t('about.approach.architecture.title'),
+    description: t('about.approach.architecture.description'),
+    icon: 'i-lucide-git-branch',
+  },
+  {
+    title: t('about.approach.quality.title'),
+    description: t('about.approach.quality.description'),
+    icon: 'i-lucide-check-circle',
+  },
+  {
+    title: t('about.approach.collaboration.title'),
+    description: t('about.approach.collaboration.description'),
+    icon: 'i-lucide-users',
+  },
+])
 </script>
 
 <template>
-  <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-12">
-    <h1 class="text-2xl font-bold">{{ t('nav.about') }}</h1>
-    <p class="text-gray-600 dark:text-gray-400 mt-4">Phase 3 content placeholder</p>
+  <div>
+    <!-- Hero Section -->
+    <section class="py-20 px-4 text-center">
+      <div class="max-w-4xl mx-auto">
+        <h1 class="text-4xl sm:text-5xl font-bold mb-6">
+          {{ t('about.title') }}
+        </h1>
+        <p class="text-xl text-muted mb-8">
+          {{ t('about.subtitle') }}
+        </p>
+        <div class="space-y-4 text-lg text-muted max-w-3xl mx-auto">
+          <p>{{ t('about.intro.content') }}</p>
+          <p>{{ t('about.experience.content') }}</p>
+        </div>
+      </div>
+    </section>
+
+    <!-- Skills Section -->
+    <section class="py-16 px-4">
+      <div class="max-w-7xl mx-auto">
+        <div class="text-center mb-12">
+          <h2 class="text-3xl font-bold mb-4">{{ t('about.skills.title') }}</h2>
+          <p class="text-lg text-muted max-w-2xl mx-auto">
+            {{ t('about.subtitle') }}
+          </p>
+        </div>
+
+        <!-- Tech Categories Grid -->
+        <div class="grid grid-cols-1 lg:grid-cols-2 gap-6 mb-8">
+          <UCard v-for="category in techCategories" :key="category.key">
+            <div class="flex items-center gap-3 mb-4">
+              <UIcon :name="category.icon" class="text-2xl text-primary" />
+              <h3 class="text-xl font-bold">{{ category.title }}</h3>
+            </div>
+            <div class="flex flex-wrap gap-3">
+              <TechBadge
+                v-for="tech in techStack[category.key]"
+                :key="tech.name"
+                :tech="tech"
+                :show-level="true"
+              />
+            </div>
+          </UCard>
+        </div>
+
+        <!-- Operating Systems -->
+        <UCard>
+          <div class="flex items-center gap-3 mb-4">
+            <UIcon name="i-lucide-monitor" class="text-2xl text-primary" />
+            <h3 class="text-xl font-bold">{{ t('about.skills.systems') }}</h3>
+          </div>
+          <div class="flex flex-wrap gap-3">
+            <TechBadge
+              v-for="tech in techStack.operating_systems"
+              :key="tech.name"
+              :tech="tech"
+              :show-level="false"
+            />
+          </div>
+        </UCard>
+      </div>
+    </section>
+
+    <!-- Approach Section -->
+    <section class="py-16 px-4">
+      <div class="max-w-7xl mx-auto">
+        <div class="text-center mb-12">
+          <h2 class="text-3xl font-bold mb-4">{{ t('about.approach.title') }}</h2>
+          <p class="text-lg text-muted max-w-2xl mx-auto">
+            {{ t('about.approach.subtitle') }}
+          </p>
+        </div>
+
+        <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
+          <UCard v-for="(card, index) in approachCards" :key="index">
+            <div class="flex items-start gap-4">
+              <UIcon :name="card.icon" class="text-2xl text-primary shrink-0 mt-1" />
+              <div>
+                <h3 class="text-lg font-bold mb-2">{{ card.title }}</h3>
+                <p class="text-muted">{{ card.description }}</p>
+              </div>
+            </div>
+          </UCard>
+        </div>
+      </div>
+    </section>
+
+    <!-- CTA Section -->
+    <section class="py-16 px-4 text-center">
+      <div class="max-w-2xl mx-auto">
+        <h2 class="text-3xl font-bold mb-4">{{ t('about.cta.title') }}</h2>
+        <p class="text-lg text-muted mb-8">{{ t('about.cta.description') }}</p>
+        <div class="flex flex-wrap justify-center gap-4">
+          <UButton to="/contact" size="lg">
+            {{ t('about.cta.button') }}
+          </UButton>
+          <UButton to="/projects" size="lg" variant="outline">
+            {{ t('home.cta.viewProjects') }}
+          </UButton>
+        </div>
+      </div>
+    </section>
   </div>
 </template>

app/pages/contact.vue

@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import { siteConfig } from '~/data/site'
+
 const { t } = useI18n()
 
 useSeoMeta({
@@ -14,8 +16,123 @@ useSeoMeta({
 </script>
 
 <template>
-  <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-12">
-    <h1 class="text-2xl font-bold">{{ t('nav.contact') }}</h1>
-    <p class="text-gray-600 dark:text-gray-400 mt-4">Phase 3 content placeholder</p>
+  <div>
+    <!-- Hero Section -->
+    <section class="py-20 px-4 text-center">
+      <div class="max-w-4xl mx-auto">
+        <h1 class="text-4xl sm:text-5xl font-bold mb-6">
+          {{ t('contact.title') }}
+        </h1>
+        <p class="text-xl text-muted mb-8">
+          {{ t('contact.subtitle') }}
+        </p>
+
+        <!-- Stats -->
+        <div class="flex flex-wrap justify-center gap-8">
+          <div class="text-center">
+            <div class="text-2xl font-bold text-primary">24-48h</div>
+            <div class="text-sm text-muted">{{ t('contact.stats.responseTime') }}</div>
+          </div>
+          <div class="text-center">
+            <div class="text-2xl font-bold text-primary">100%</div>
+            <div class="text-sm text-muted">{{ t('contact.stats.satisfaction') }}</div>
+          </div>
+          <div class="text-center">
+            <div class="text-2xl font-bold text-primary">Remote</div>
+            <div class="text-sm text-muted">{{ t('contact.stats.collaboration') }}</div>
+          </div>
+        </div>
+      </div>
+    </section>
+
+    <!-- Two Column Layout -->
+    <section class="py-16 px-4">
+      <div class="max-w-5xl mx-auto grid grid-cols-1 lg:grid-cols-2 gap-8">
+        <!-- Left: Contact Form -->
+        <UCard>
+          <template #header>
+            <h2 class="text-2xl font-bold">{{ t('contact.form.title') }}</h2>
+          </template>
+          <ContactForm />
+        </UCard>
+
+        <!-- Right: Contact Info + Social -->
+        <div class="flex flex-col gap-6">
+          <!-- Contact Info -->
+          <UCard>
+            <template #header>
+              <h2 class="text-xl font-bold">{{ t('contact.quickContact') }}</h2>
+            </template>
+            <div class="flex flex-col gap-4">
+              <a :href="`mailto:${siteConfig.contact.email}`" class="flex items-center gap-3 hover:text-primary transition-colors">
+                <UIcon name="i-lucide-mail" class="text-xl text-primary shrink-0" />
+                <span>{{ siteConfig.contact.email }}</span>
+              </a>
+              <a :href="`tel:${siteConfig.contact.phone.replace(/\s/g, '')}`" class="flex items-center gap-3 hover:text-primary transition-colors">
+                <UIcon name="i-lucide-phone" class="text-xl text-primary shrink-0" />
+                <span>{{ siteConfig.contact.phone }}</span>
+              </a>
+              <div class="flex items-center gap-3">
+                <UIcon name="i-lucide-map-pin" class="text-xl text-primary shrink-0" />
+                <span>{{ siteConfig.contact.location }}</span>
+              </div>
+            </div>
+          </UCard>
+
+          <!-- Social Links -->
+          <UCard>
+            <template #header>
+              <h2 class="text-xl font-bold">{{ t('contact.findMeOn') }}</h2>
+            </template>
+            <div class="flex flex-col gap-3">
+              <a
+                v-for="social in siteConfig.social.filter(s => s.icon !== 'i-lucide-mail')"
+                :key="social.name"
+                :href="social.url"
+                target="_blank"
+                rel="noopener noreferrer"
+                class="flex items-center gap-3 hover:text-primary transition-colors"
+              >
+                <UIcon :name="social.icon" class="text-xl shrink-0" />
+                <span>{{ social.name }}</span>
+                <UIcon name="i-lucide-external-link" class="text-sm text-muted ml-auto" />
+              </a>
+            </div>
+          </UCard>
+        </div>
+      </div>
+    </section>
+
+    <!-- FAQ Info Cards -->
+    <section class="py-16 px-4">
+      <div class="max-w-5xl mx-auto">
+        <div class="text-center mb-12">
+          <h2 class="text-3xl font-bold mb-4">{{ t('contact.faq.title') }}</h2>
+          <p class="text-lg text-muted max-w-2xl mx-auto">
+            {{ t('contact.faq.subtitle') }}
+          </p>
+        </div>
+
+        <div class="grid grid-cols-1 md:grid-cols-3 gap-6">
+          <UCard class="text-center">
+            <UIcon name="i-lucide-clock" class="text-3xl text-primary mb-4 mx-auto" />
+            <h3 class="text-lg font-bold mb-2">{{ t('contact.faq.responseTime.title') }}</h3>
+            <p class="text-muted text-sm">{{ t('contact.faq.responseTime.description') }}</p>
+          </UCard>
+
+          <UCard class="text-center">
+            <UIcon name="i-lucide-building" class="text-3xl text-primary mb-4 mx-auto" />
+            <h3 class="text-lg font-bold mb-2">{{ t('contact.faq.projectTypes.title') }}</h3>
+            <p class="text-muted text-sm">{{ t('contact.faq.projectTypes.description') }}</p>
+          </UCard>
+
+          <UCard class="text-center">
+            <UIcon name="i-lucide-users" class="text-3xl text-primary mb-4 mx-auto" />
+            <h3 class="text-lg font-bold mb-2">{{ t('contact.faq.collaboration.title') }}</h3>
+            <p class="text-muted text-sm">{{ t('contact.faq.collaboration.description') }}</p>
+          </UCard>
+        </div>
+      </div>
+    </section>
   </div>
 </template>