diff --git a/services/frontend-leptos/.env.example b/services/frontend-leptos/.env.example
new file mode 100644
index 0000000..3634e80
--- /dev/null
+++ b/services/frontend-leptos/.env.example
@@ -0,0 +1,3 @@
+# API/WS endpoints — set these before building
+VITE_BE_API_URL=http://localhost:3001
+VITE_BE_WS_URL=ws://localhost:3001/ws
diff --git a/services/frontend-leptos/Cargo.toml b/services/frontend-leptos/Cargo.toml
new file mode 100644
index 0000000..3ff0eb7
--- /dev/null
+++ b/services/frontend-leptos/Cargo.toml
@@ -0,0 +1,3 @@
+[workspace]
+resolver = "2"
+members = ["shared-types", "frontend"]
diff --git a/services/frontend-leptos/rust-toolchain.toml b/services/frontend-leptos/rust-toolchain.toml
new file mode 100644
index 0000000..3aa3203
--- /dev/null
+++ b/services/frontend-leptos/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "nightly-2026-06-01"
+components = ["rust-src", "rustc-dev"]
+targets = ["wasm32-unknown-unknown"]
diff --git a/services/frontend-leptos/shared-types/Cargo.toml b/services/frontend-leptos/shared-types/Cargo.toml
new file mode 100644
index 0000000..3f27442
--- /dev/null
+++ b/services/frontend-leptos/shared-types/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "shared-types"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
diff --git a/services/frontend-leptos/shared-types/src/dashboard.rs b/services/frontend-leptos/shared-types/src/dashboard.rs
new file mode 100644
index 0000000..33eafbb
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/dashboard.rs
@@ -0,0 +1,83 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DashboardStats {
+    pub total_messages: u64,
+    pub total_users: u64,
+    pub total_flagged: u64,
+    pub total_clean: u64,
+    pub total_warned: u64,
+    pub total_error: u64,
+    pub total_voice_recordings: u64,
+    pub total_profiles: u64,
+    pub today_messages: u64,
+    pub today_flagged: u64,
+    pub active_users_24h: u64,
+    pub top_channels: Vec<TopChannel>,
+    pub moderation_overview: ModerationOverview,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TopChannel {
+    pub channel_id: String,
+    pub channel_name: String,
+    pub message_count: u64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ModerationOverview {
+    pub pending: u64,
+    pub processing: u64,
+    pub error: u64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DashboardUser {
+    pub user_id: String,
+    pub username: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub avatar_url: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub profile_summary: Option<String>,
+    pub total_messages: u64,
+    pub flagged_count: u64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub last_message_at: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub trust_score: Option<f64>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DashboardUserDetail {
+    #[serde(flatten)]
+    pub user: DashboardUser,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub last_analyzed_at: Option<i64>,
+    pub clean_message_streak: u64,
+    pub total_infractions: u64,
+    pub clean_count: u64,
+    pub recent_messages: Vec<super::message::MessageRecord>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DashboardChannel {
+    pub channel_id: String,
+    pub channel_name: String,
+    pub guild_id: String,
+    pub total_messages: u64,
+    pub flagged_count: u64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub last_message_at: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub culture_summary: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub last_analyzed_at: Option<i64>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DashboardChannelDetail {
+    #[serde(flatten)]
+    pub channel: DashboardChannel,
+    pub clean_count: u64,
+    pub recent_messages: Vec<super::message::MessageRecord>,
+}
diff --git a/services/frontend-leptos/shared-types/src/guild.rs b/services/frontend-leptos/shared-types/src/guild.rs
new file mode 100644
index 0000000..85ecc4c
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/guild.rs
@@ -0,0 +1,35 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Guild {
+    pub id: String,
+    pub name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub icon: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Channel {
+    pub id: String,
+    pub name: String,
+    #[serde(rename = "type")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub channel_type: Option<u32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub parent_id: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct GuildVoiceEntry {
+    pub guild_id: String,
+    pub channel_id: String,
+    pub channel_name: String,
+    pub connected_at: i64,
+}
+
+// ── Config ────────────────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AppConfig {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub monitor_guild_id: Option<String>,
+}
diff --git a/services/frontend-leptos/shared-types/src/lib.rs b/services/frontend-leptos/shared-types/src/lib.rs
new file mode 100644
index 0000000..1ca4889
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/lib.rs
@@ -0,0 +1,7 @@
+pub mod message;
+pub mod guild;
+pub mod voice;
+pub mod media;
+pub mod dashboard;
+pub mod recording;
+pub mod ui_state;
diff --git a/services/frontend-leptos/shared-types/src/media.rs b/services/frontend-leptos/shared-types/src/media.rs
new file mode 100644
index 0000000..c175dd1
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/media.rs
@@ -0,0 +1,30 @@
+use serde::{Deserialize, Serialize};
+
+pub type MediaMode = String; // "music" | "screen"
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct MediaItem {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub id: Option<String>,
+    pub source: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub title: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub mode: Option<MediaMode>,
+    #[serde(rename = "durationMs")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub duration_ms: Option<u64>,
+    #[serde(rename = "thumbnailUrl")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub thumbnail_url: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct MediaState {
+    pub playing: bool,
+    #[serde(rename = "musicVolume")]
+    pub music_volume: f64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub current: Option<MediaItem>,
+    pub queue: Vec<MediaItem>,
+}
diff --git a/services/frontend-leptos/shared-types/src/message.rs b/services/frontend-leptos/shared-types/src/message.rs
new file mode 100644
index 0000000..5f156d4
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/message.rs
@@ -0,0 +1,170 @@
+use serde::{Deserialize, Serialize};
+
+// ── AI Status ─────────────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "snake_case")]
+pub enum AiStatus {
+    Pending,
+    Processing,
+    Clean,
+    Warn,
+    Flagged,
+    Error,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "snake_case")]
+pub enum AiSeverity {
+    None,
+    Low,
+    Medium,
+    High,
+    Critical,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "snake_case")]
+pub enum AiRecommendedAction {
+    None,
+    Monitor,
+    Warn,
+    Review,
+    Delete,
+    Escalate,
+}
+
+// ── Message Metadata ──────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct MessageMetadata {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub stickers: Option<Vec<StickerInfo>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub attachments: Option<Vec<AttachmentRef>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub embeds: Option<Vec<EmbedInfo>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub channel: Option<ChannelRef>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StickerInfo {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub name: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub url: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AttachmentRef {
+    pub name: String,
+    pub url: String,
+    #[serde(rename = "contentType")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub content_type: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct EmbedInfo {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub title: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub image: Option<EmbedMedia>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub thumbnail: Option<EmbedMedia>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct EmbedMedia {
+    pub url: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub width: Option<u32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub height: Option<u32>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ChannelRef {
+    pub channel_id: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub channel_name: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub thread_id: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub thread_name: Option<String>,
+}
+
+// ── Message Record ────────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct MessageRecord {
+    pub id: String,
+    pub guild_id: String,
+    pub channel_id: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub thread_id: Option<String>,
+    pub user_id: String,
+    pub username: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub avatar_url: Option<String>,
+    pub content: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub edited_content: Option<String>,
+    #[serde(rename = "type")]
+    pub msg_type: String, // "text" | "edited" | "deleted"
+    pub created_at: i64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub edited_at: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub deleted_at: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_status: Option<AiStatus>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_severity: Option<AiSeverity>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_confidence: Option<f64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_moderation_flags: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_moderation_score: Option<f64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_analysis: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_categories: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_recommended_action: Option<AiRecommendedAction>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_error: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ai_analyzed_at: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub metadata: Option<MessageMetadata>,
+}
+
+// ── Pagination ────────────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PageResult<T> {
+    pub data: Vec<T>,
+    #[serde(rename = "nextCursor")]
+    pub next_cursor: Option<String>,
+}
+
+// ── Attachment ────────────────────────────────────────────
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AttachmentRecord {
+    pub id: String,
+    pub message_id: String,
+    pub guild_id: String,
+    pub channel_id: String,
+    pub filename: String,
+    pub size: u64,
+    #[serde(rename = "type")]
+    pub mime_type: String,
+    pub discord_url: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub uploaded_url: Option<String>,
+    pub upload_status: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub upload_error: Option<String>,
+    pub created_at: i64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub uploaded_at: Option<i64>,
+}
diff --git a/services/frontend-leptos/shared-types/src/recording.rs b/services/frontend-leptos/shared-types/src/recording.rs
new file mode 100644
index 0000000..5cb8fba
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/recording.rs
@@ -0,0 +1,36 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct VoiceRecording {
+    pub id: String,
+    pub user_id: String,
+    pub username: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub avatar_url: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub guild_id: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub channel_id: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub channel_name: Option<String>,
+    pub filename: String,
+    pub size_bytes: u64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub download_url: Option<String>,
+    pub upload_status: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub upload_error: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub transcription: Option<String>,
+    pub created_at: i64,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub uploaded_at: Option<i64>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct VoiceRecordingListResponse {
+    pub items: Vec<VoiceRecording>,
+    #[serde(rename = "nextCursor")]
+    pub next_cursor: Option<String>,
+    pub has_more: bool,
+}
diff --git a/services/frontend-leptos/shared-types/src/ui_state.rs b/services/frontend-leptos/shared-types/src/ui_state.rs
new file mode 100644
index 0000000..f0eb826
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/ui_state.rs
@@ -0,0 +1,29 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "snake_case")]
+pub enum Tab {
+    Messages,
+    Live,
+    Dashboard,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct UiState {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub selected_guild: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub selected_voice_guild: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub selected_voice_channel: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub selected_text_guild: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub selected_text_channel: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub active_tab: Option<Tab>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub is_listening: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub is_streaming: Option<bool>,
+}
diff --git a/services/frontend-leptos/shared-types/src/voice.rs b/services/frontend-leptos/shared-types/src/voice.rs
new file mode 100644
index 0000000..888277c
--- /dev/null
+++ b/services/frontend-leptos/shared-types/src/voice.rs
@@ -0,0 +1,24 @@
+use serde::{Deserialize, Serialize};
+use crate::guild::GuildVoiceEntry;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct VoiceStatus {
+    pub connected: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub active_guild_id: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub active_channel_id: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub active_channel_name: Option<String>,
+    pub connections: Vec<GuildVoiceEntry>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ActiveSpeaker {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub id: Option<String>,
+    pub user_id: String,
+    pub username: String,
+    pub avatar: String,
+    pub speaking: bool,
+}