feat: 模块统一 ias- 前缀、独立版本与内网地址支持 (0.1.7)

- 所有 Rust crate 统一加 ias- 前缀：ai → ias-ai、common → ias-common、context → ias-context、mail → ias-mail、service → ias-service、wechat → ias-wechat
- 新增 ias-main 模块承载 CLI 入口和二进制打包
- 各模块开始独立维护版本号，ias-main 0.1.7 代表整体版本
- 新增 IA_WEB_INTERNAL_URL 环境变量，版本通知同时发送公网和内网链接
- 将已有升级日志翻译为中文
- ias_upgrade_logs 新增 modules JSONB 字段
- 新增 VERSION 文件和 CHANGELOG.md
- 新增 AGENTS.md 项目规则文件

ias-http/src/app.rs

@@ -0,0 +1,48 @@
+use axum::routing::get;
+use axum::{Json, Router};
+use sqlx::PgPool;
+use tokio::sync::watch;
+
+use crate::updates::routes as update_routes;
+use crate::web::routes as web_routes;
+
+pub async fn create_http(
+    host: String,
+    mut shutdown_rx: watch::Receiver<bool>,
+    db: PgPool,
+    extra_routes: Router,
+) -> anyhow::Result<()> {
+    let app = Router::new()
+        .route("/health", get(health))
+        .merge(update_routes::<()>(db.clone()))
+        .merge(web_routes::routes::<()>(db))
+        .merge(extra_routes);
+    let listener = tokio::net::TcpListener::bind(&host).await.map_err(|err| {
+        if err.kind() == std::io::ErrorKind::AddrInUse {
+            anyhow::anyhow!(
+                "HTTP 地址已被占用: {}。请停止已有服务，或修改 HOST 后重试",
+                host
+            )
+        } else {
+            anyhow::anyhow!("HTTP 地址监听失败: {}: {}", host, err)
+        }
+    })?;
+    println!("服务启动在：http://{}", listener.local_addr()?);
+    axum::serve(listener, app)
+        .with_graceful_shutdown(async move {
+            while shutdown_rx.changed().await.is_ok() {
+                if *shutdown_rx.borrow() {
+                    break;
+                }
+            }
+        })
+        .await?;
+    Ok(())
+}
+
+async fn health() -> Json<serde_json::Value> {
+    Json(serde_json::json!({
+        "success": true,
+        "message": "service is running"
+    }))
+}

ias-http/src/lib.rs

@@ -0,0 +1,5 @@
+pub mod app;
+pub mod updates;
+pub mod web;
+
+pub use app::create_http;

ias-http/src/updates.rs

@@ -0,0 +1,301 @@
+use axum::extract::Path;
+use axum::http::StatusCode;
+use axum::response::Html;
+use axum::routing::get;
+use axum::{Extension, Router};
+use chrono::{DateTime, Utc};
+use serde_json::Value;
+use sqlx::PgPool;
+use sqlx::prelude::FromRow;
+
+type HtmlError = (StatusCode, Html<String>);
+
+#[derive(Clone)]
+struct UpdateRouteState {
+    db: PgPool,
+}
+
+#[derive(Debug, Clone, FromRow)]
+struct UpgradeLog {
+    version: String,
+    released_at: DateTime<Utc>,
+    title: String,
+    description: String,
+    changes: Value,
+}
+
+pub fn routes<S>(db: PgPool) -> Router<S>
+where
+    S: Clone + Send + Sync + 'static,
+{
+    Router::new()
+        .route("/updates", get(show_updates))
+        .route("/updates/{version}", get(show_update))
+        .layer(Extension(UpdateRouteState { db }))
+}
+
+async fn show_updates(
+    Extension(state): Extension<UpdateRouteState>,
+) -> Result<Html<String>, HtmlError> {
+    let logs = list_upgrade_logs(&state.db)
+        .await
+        .map_err(html_internal_error)?;
+    Ok(Html(render_updates_page(&logs)))
+}
+
+async fn show_update(
+    Extension(state): Extension<UpdateRouteState>,
+    Path(version): Path<String>,
+) -> Result<Html<String>, HtmlError> {
+    let log = find_upgrade_log(&state.db, &version)
+        .await
+        .map_err(html_internal_error)?
+        .ok_or_else(html_not_found)?;
+    Ok(Html(render_update_page(&log)))
+}
+
+async fn list_upgrade_logs(pool: &PgPool) -> anyhow::Result<Vec<UpgradeLog>> {
+    let rows = sqlx::query_as::<_, UpgradeLog>(
+        r#"
+        SELECT version, released_at, title, description, changes
+        FROM ias_upgrade_logs
+        ORDER BY released_at DESC, version DESC
+        "#,
+    )
+    .fetch_all(pool)
+    .await?;
+    Ok(rows)
+}
+
+async fn find_upgrade_log(pool: &PgPool, version: &str) -> anyhow::Result<Option<UpgradeLog>> {
+    let row = sqlx::query_as::<_, UpgradeLog>(
+        r#"
+        SELECT version, released_at, title, description, changes
+        FROM ias_upgrade_logs
+        WHERE version = $1
+        "#,
+    )
+    .bind(version.trim())
+    .fetch_optional(pool)
+    .await?;
+    Ok(row)
+}
+
+fn render_updates_page(logs: &[UpgradeLog]) -> String {
+    let items = logs
+        .iter()
+        .map(|log| {
+            format!(
+                r#"<li><a href="/updates/{version}">v{version}</a><span>{date}</span><strong>{title}</strong><p>{description}</p></li>"#,
+                version = escape_html(&log.version),
+                date = escape_html(&format_date(log.released_at)),
+                title = escape_html(&log.title),
+                description = escape_html(&log.description),
+            )
+        })
+        .collect::<Vec<_>>()
+        .join("");
+
+    render_shell(
+        "更新日志",
+        r#"<p class="summary">服务版本更新记录。</p>"#,
+        &format!(r#"<ol class="updates">{items}</ol>"#),
+    )
+}
+
+fn render_update_page(log: &UpgradeLog) -> String {
+    let changes = render_changes(&log.changes);
+    let body = format!(
+        r#"<p class="summary">{description}</p>
+<section class="meta">
+  <span>版本：v{version}</span>
+  <span>发布时间：{date}</span>
+</section>
+<section class="panel">
+  <h2>变更内容</h2>
+  {changes}
+</section>
+<p class="back"><a href="/updates">查看全部更新</a></p>"#,
+        description = escape_html(&log.description),
+        version = escape_html(&log.version),
+        date = escape_html(&format_date(log.released_at)),
+        changes = changes,
+    );
+    render_shell(&format!("v{} {}", log.version, log.title), "", &body)
+}
+
+fn render_changes(value: &Value) -> String {
+    let Some(items) = value.as_array() else {
+        return format!("<pre>{}</pre>", escape_html(&value.to_string()));
+    };
+
+    let items = items
+        .iter()
+        .filter_map(Value::as_str)
+        .map(|item| format!("<li>{}</li>", escape_html(item)))
+        .collect::<Vec<_>>()
+        .join("");
+    format!("<ul>{items}</ul>")
+}
+
+fn render_shell(title: &str, intro: &str, body: &str) -> String {
+    format!(
+        r#"<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{title}</title>
+  <style>
+    :root {{
+      color-scheme: light;
+      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+      background: #f6f7f9;
+      color: #1f2328;
+    }}
+    body {{
+      margin: 0;
+      min-height: 100vh;
+      background: #f6f7f9;
+    }}
+    main {{
+      width: min(880px, calc(100% - 32px));
+      margin: 0 auto;
+      padding: 40px 0 56px;
+    }}
+    h1 {{
+      margin: 0 0 12px;
+      font-size: 34px;
+      line-height: 1.18;
+      letter-spacing: 0;
+    }}
+    h2 {{
+      margin: 0 0 14px;
+      font-size: 20px;
+      line-height: 1.3;
+      letter-spacing: 0;
+    }}
+    .summary {{
+      margin: 0 0 22px;
+      color: #57606a;
+      font-size: 16px;
+      line-height: 1.7;
+    }}
+    .meta {{
+      display: flex;
+      flex-wrap: wrap;
+      gap: 10px 18px;
+      margin: 0 0 24px;
+      color: #57606a;
+      font-size: 14px;
+    }}
+    .panel {{
+      border: 1px solid #d8dee4;
+      border-radius: 8px;
+      background: #ffffff;
+      padding: 22px 24px;
+    }}
+    ul {{
+      margin: 0;
+      padding-left: 22px;
+      line-height: 1.8;
+    }}
+    .updates {{
+      list-style: none;
+      margin: 0;
+      padding: 0;
+      display: grid;
+      gap: 12px;
+    }}
+    .updates li {{
+      border: 1px solid #d8dee4;
+      border-radius: 8px;
+      background: #ffffff;
+      padding: 18px 20px;
+    }}
+    .updates a {{
+      display: inline-block;
+      margin-right: 12px;
+      color: #0969da;
+      font-weight: 700;
+      text-decoration: none;
+    }}
+    .updates span {{
+      color: #6e7781;
+      font-size: 13px;
+    }}
+    .updates strong {{
+      display: block;
+      margin-top: 8px;
+      font-size: 18px;
+      line-height: 1.35;
+    }}
+    .updates p {{
+      margin: 8px 0 0;
+      color: #57606a;
+      line-height: 1.65;
+    }}
+    .back {{
+      margin: 18px 0 0;
+    }}
+    .back a {{
+      color: #0969da;
+      text-decoration: none;
+    }}
+  </style>
+</head>
+<body>
+  <main>
+    <h1>{title}</h1>
+    {intro}
+    {body}
+  </main>
+</body>
+</html>"#,
+        title = escape_html(title),
+        intro = intro,
+        body = body,
+    )
+}
+
+fn format_date(value: DateTime<Utc>) -> String {
+    value.format("%Y-%m-%d %H:%M:%S UTC").to_string()
+}
+
+fn html_not_found() -> HtmlError {
+    (
+        StatusCode::NOT_FOUND,
+        Html(render_shell(
+            "更新日志不存在",
+            r#"<p class="summary">没有找到对应版本的更新日志。</p>"#,
+            r#"<p class="back"><a href="/updates">查看全部更新</a></p>"#,
+        )),
+    )
+}
+
+fn html_internal_error(error: anyhow::Error) -> HtmlError {
+    eprintln!("读取更新日志失败: {error}");
+    (
+        StatusCode::INTERNAL_SERVER_ERROR,
+        Html(render_shell(
+            "更新日志暂时不可用",
+            r#"<p class="summary">读取更新日志失败。</p>"#,
+            "",
+        )),
+    )
+}
+
+fn escape_html(value: &str) -> String {
+    let mut escaped = String::with_capacity(value.len());
+    for ch in value.chars() {
+        match ch {
+            '&' => escaped.push_str("&amp;"),
+            '<' => escaped.push_str("&lt;"),
+            '>' => escaped.push_str("&gt;"),
+            '"' => escaped.push_str("&quot;"),
+            '\'' => escaped.push_str("&#39;"),
+            _ => escaped.push(ch),
+        }
+    }
+    escaped
+}

ias-http/src/web/mod.rs

@@ -0,0 +1,7 @@
+pub mod model;
+pub mod repository;
+pub mod routes;
+
+pub use model::{NewWebPage, WebPage};
+pub use repository::WebPageRepository;
+pub use routes::{generate_slug, internal_url_for_path, public_path, public_url_for_path};

ias-http/src/web/model.rs

@@ -0,0 +1,59 @@
+use chrono::NaiveDateTime;
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+use sqlx::prelude::FromRow;
+
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct WebPage {
+    pub id: i64,
+    pub slug: String,
+    pub page_type: String,
+    pub title: String,
+    pub summary: Option<String>,
+    pub content: String,
+    pub source_label: Option<String>,
+    pub metadata: String,
+    pub created_at: Option<NaiveDateTime>,
+}
+
+#[derive(Debug, Clone)]
+pub struct NewWebPage {
+    pub slug: String,
+    pub page_type: String,
+    pub title: String,
+    pub summary: Option<String>,
+    pub content: String,
+    pub source_label: Option<String>,
+    pub metadata: String,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct CreateWebPageRequest {
+    pub page_type: Option<String>,
+    pub title: String,
+    pub summary: Option<String>,
+    pub content: String,
+    pub source_label: Option<String>,
+    pub metadata: Option<Value>,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct CreateMailPageRequest {
+    pub from: String,
+    pub subject: String,
+    pub reminder: Option<String>,
+    pub content: String,
+    pub received_at: Option<String>,
+}
+
+#[derive(Debug, Serialize)]
+pub struct CreateWebPageResponse {
+    pub success: bool,
+    pub id: i64,
+    pub slug: String,
+    pub page_type: String,
+    pub title: String,
+    pub summary: Option<String>,
+    pub path: String,
+    pub url: String,
+}

ias-http/src/web/repository.rs

@@ -0,0 +1,56 @@
+use sqlx::PgPool;
+
+use crate::web::model::{NewWebPage, WebPage};
+
+pub struct WebPageRepository;
+
+impl WebPageRepository {
+    pub async fn create(pool: &PgPool, page: NewWebPage) -> anyhow::Result<WebPage> {
+        let row = sqlx::query_as::<_, WebPage>(
+            r#"
+            INSERT INTO ias_web_pages (
+                slug,
+                page_type,
+                title,
+                summary,
+                content,
+                source_label,
+                metadata
+            )
+            VALUES ($1, $2, $3, $4, $5, $6, $7)
+            RETURNING id, slug, page_type, title, summary, content, source_label, metadata, created_at
+            "#,
+        )
+        .bind(page.slug)
+        .bind(page.page_type)
+        .bind(page.title)
+        .bind(page.summary)
+        .bind(page.content)
+        .bind(page.source_label)
+        .bind(page.metadata)
+        .fetch_one(pool)
+        .await?;
+
+        Ok(row)
+    }
+
+    pub async fn find_by_type_and_slug(
+        pool: &PgPool,
+        page_type: &str,
+        slug: &str,
+    ) -> anyhow::Result<Option<WebPage>> {
+        let row = sqlx::query_as::<_, WebPage>(
+            r#"
+            SELECT id, slug, page_type, title, summary, content, source_label, metadata, created_at
+            FROM ias_web_pages
+            WHERE page_type = $1 AND slug = $2
+            "#,
+        )
+        .bind(page_type)
+        .bind(slug)
+        .fetch_optional(pool)
+        .await?;
+
+        Ok(row)
+    }
+}

ias-http/src/web/routes.rs

@@ -0,0 +1,524 @@
+use axum::extract::Path;
+use axum::http::{HeaderMap, StatusCode};
+use axum::response::Html;
+use axum::routing::{get, post};
+use axum::{Extension, Json, Router};
+use serde_json::{Value, json};
+use sqlx::PgPool;
+use uuid::Uuid;
+
+use crate::web::model::{
+    CreateMailPageRequest, CreateWebPageRequest, CreateWebPageResponse, NewWebPage, WebPage,
+};
+use crate::web::repository::WebPageRepository;
+
+type ApiError = (StatusCode, Json<Value>);
+type HtmlError = (StatusCode, Html<String>);
+
+#[derive(Clone)]
+pub struct WebRouteState {
+    pub db: PgPool,
+}
+
+impl WebRouteState {
+    pub fn new(db: PgPool) -> Self {
+        Self { db }
+    }
+}
+
+pub fn routes<S>(db: PgPool) -> Router<S>
+where
+    S: Clone + Send + Sync + 'static,
+{
+    Router::new()
+        .route("/web/pages", post(create_page))
+        .route("/web/mail", post(create_mail_page))
+        .route("/mail/{slug}", get(show_mail_page))
+        .route("/web/{page_type}/{slug}", get(show_typed_page))
+        .layer(Extension(WebRouteState::new(db)))
+}
+
+async fn create_page(
+    Extension(state): Extension<WebRouteState>,
+    headers: HeaderMap,
+    Json(request): Json<CreateWebPageRequest>,
+) -> Result<Json<CreateWebPageResponse>, ApiError> {
+    let page_type = normalize_key(request.page_type.as_deref().unwrap_or("page"), "page_type")?;
+    let title = required_text(&request.title, "title")?;
+    let content = required_text(&request.content, "content")?;
+    let metadata = request.metadata.unwrap_or_else(|| json!({})).to_string();
+
+    let page = NewWebPage {
+        slug: generate_slug(),
+        page_type,
+        title,
+        summary: optional_text(request.summary),
+        content,
+        source_label: optional_text(request.source_label),
+        metadata,
+    };
+
+    let page = WebPageRepository::create(&state.db, page)
+        .await
+        .map_err(api_internal_error)?;
+
+    Ok(Json(response_for_page(&page, &headers)))
+}
+
+async fn create_mail_page(
+    Extension(state): Extension<WebRouteState>,
+    headers: HeaderMap,
+    Json(request): Json<CreateMailPageRequest>,
+) -> Result<Json<CreateWebPageResponse>, ApiError> {
+    let from = required_text(&request.from, "from")?;
+    let subject = required_text(&request.subject, "subject")?;
+    let content = required_text(&request.content, "content")?;
+    let reminder = optional_text(request.reminder);
+    let received_at = optional_text(request.received_at);
+    let summary = reminder
+        .clone()
+        .unwrap_or_else(|| format!("您收到了一份来自 {from} 的邮件提醒"));
+
+    let metadata = json!({
+        "from": from,
+        "subject": subject,
+        "reminder": reminder,
+        "received_at": received_at,
+    })
+    .to_string();
+
+    let page = NewWebPage {
+        slug: generate_slug(),
+        page_type: "mail".to_string(),
+        title: subject,
+        summary: Some(summary),
+        content,
+        source_label: Some(from),
+        metadata,
+    };
+
+    let page = WebPageRepository::create(&state.db, page)
+        .await
+        .map_err(api_internal_error)?;
+
+    Ok(Json(response_for_page(&page, &headers)))
+}
+
+async fn show_mail_page(
+    Extension(state): Extension<WebRouteState>,
+    Path(slug): Path<String>,
+) -> Result<Html<String>, HtmlError> {
+    let page = WebPageRepository::find_by_type_and_slug(&state.db, "mail", &slug)
+        .await
+        .map_err(html_internal_error)?
+        .ok_or_else(html_not_found)?;
+
+    Ok(Html(render_page(&page)))
+}
+
+async fn show_typed_page(
+    Extension(state): Extension<WebRouteState>,
+    Path((page_type, slug)): Path<(String, String)>,
+) -> Result<Html<String>, HtmlError> {
+    let page_type = normalize_key(&page_type, "page_type").map_err(|_| html_not_found())?;
+    let page = WebPageRepository::find_by_type_and_slug(&state.db, &page_type, &slug)
+        .await
+        .map_err(html_internal_error)?
+        .ok_or_else(html_not_found)?;
+
+    Ok(Html(render_page(&page)))
+}
+
+fn response_for_page(page: &WebPage, headers: &HeaderMap) -> CreateWebPageResponse {
+    let path = public_path(page);
+    let url = format!("{}{}", request_base_url(headers), path);
+
+    CreateWebPageResponse {
+        success: true,
+        id: page.id,
+        slug: page.slug.clone(),
+        page_type: page.page_type.clone(),
+        title: page.title.clone(),
+        summary: page.summary.clone(),
+        path,
+        url,
+    }
+}
+
+pub fn public_path(page: &WebPage) -> String {
+    if page.page_type == "mail" {
+        format!("/mail/{}", page.slug)
+    } else {
+        format!("/web/{}/{}", page.page_type, page.slug)
+    }
+}
+
+pub fn public_url_for_path(path: &str) -> String {
+    format!("{}{}", configured_base_url(), path)
+}
+
+pub fn internal_url_for_path(path: &str) -> String {
+    format!("{}{}", configured_internal_url(), path)
+}
+
+fn request_base_url(headers: &HeaderMap) -> String {
+    if let Some(base_url) = configured_base_url_from_env() {
+        return base_url;
+    }
+
+    let host = headers
+        .get("host")
+        .and_then(|value| value.to_str().ok())
+        .filter(|value| !value.trim().is_empty())
+        .unwrap_or("127.0.0.1:9003");
+    let proto = headers
+        .get("x-forwarded-proto")
+        .and_then(|value| value.to_str().ok())
+        .filter(|value| !value.trim().is_empty())
+        .unwrap_or("http");
+
+    format!("{}://{}", proto.trim(), host.trim()).replace("0.0.0.0", "127.0.0.1")
+}
+
+fn configured_base_url() -> String {
+    configured_base_url_from_env().unwrap_or_else(|| "http://127.0.0.1:9003".to_string())
+}
+
+fn configured_internal_url() -> String {
+    std::env::var("IA_WEB_INTERNAL_URL")
+        .ok()
+        .map(|value| value.trim().trim_end_matches('/').to_string())
+        .filter(|value| !value.is_empty())
+        .map(|value| value.replace("0.0.0.0", "127.0.0.1"))
+        .unwrap_or_else(|| configured_base_url())
+}
+
+fn configured_base_url_from_env() -> Option<String> {
+    std::env::var("IA_WEB_BASE_URL")
+        .or_else(|_| std::env::var("WEB_BASE_URL"))
+        .or_else(|_| std::env::var("HOST").map(|host| format!("http://{host}")))
+        .ok()
+        .map(|value| value.trim().trim_end_matches('/').to_string())
+        .filter(|value| !value.is_empty())
+        .map(|value| value.replace("0.0.0.0", "127.0.0.1"))
+}
+
+pub fn generate_slug() -> String {
+    Uuid::new_v4().simple().to_string()
+}
+
+fn required_text(value: &str, field: &str) -> Result<String, ApiError> {
+    let value = value.trim();
+    if value.is_empty() {
+        return Err(api_bad_request(format!("{field} 不能为空")));
+    }
+    Ok(value.to_string())
+}
+
+fn optional_text(value: Option<String>) -> Option<String> {
+    value
+        .map(|value| value.trim().to_string())
+        .filter(|value| !value.is_empty())
+}
+
+fn normalize_key(value: &str, field: &str) -> Result<String, ApiError> {
+    let normalized = value.trim().to_ascii_lowercase();
+    if normalized.is_empty() || normalized.len() > 64 {
+        return Err(api_bad_request(format!("{field} 长度必须在 1 到 64 之间")));
+    }
+    if !normalized
+        .bytes()
+        .all(|byte| byte.is_ascii_alphanumeric() || byte == b'-' || byte == b'_')
+    {
+        return Err(api_bad_request(format!(
+            "{field} 只能包含字母、数字、下划线或连字符"
+        )));
+    }
+    Ok(normalized)
+}
+
+fn render_page(page: &WebPage) -> String {
+    let summary = page
+        .summary
+        .as_deref()
+        .map(|summary| format!(r#"<p class="summary">{}</p>"#, escape_html(summary)))
+        .unwrap_or_default();
+    let source = page
+        .source_label
+        .as_deref()
+        .map(|source| {
+            format!(
+                r#"<span class="meta-item">来源：{}</span>"#,
+                escape_html(source)
+            )
+        })
+        .unwrap_or_default();
+    let created_at = page
+        .created_at
+        .map(|time| time.format("%Y-%m-%d %H:%M:%S").to_string())
+        .unwrap_or_else(|| "-".to_string());
+    let metadata = render_metadata(&page.metadata);
+    let content = render_text_content(&page.content);
+    let page_type = escape_html(&page.page_type);
+
+    format!(
+        r#"<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{title}</title>
+  <style>
+    :root {{
+      color-scheme: light;
+      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+      background: #f6f7f9;
+      color: #1f2328;
+    }}
+    body {{
+      margin: 0;
+      min-height: 100vh;
+      background: #f6f7f9;
+    }}
+    main {{
+      width: min(880px, calc(100% - 32px));
+      margin: 0 auto;
+      padding: 40px 0 56px;
+    }}
+    .eyebrow {{
+      display: inline-flex;
+      align-items: center;
+      min-height: 28px;
+      padding: 0 10px;
+      border: 1px solid #d8dee4;
+      border-radius: 999px;
+      background: #ffffff;
+      color: #57606a;
+      font-size: 13px;
+      line-height: 1;
+    }}
+    h1 {{
+      margin: 18px 0 10px;
+      font-size: 32px;
+      line-height: 1.18;
+      font-weight: 720;
+      letter-spacing: 0;
+    }}
+    .summary {{
+      margin: 0 0 18px;
+      color: #57606a;
+      font-size: 17px;
+      line-height: 1.65;
+    }}
+    .meta {{
+      display: flex;
+      flex-wrap: wrap;
+      gap: 8px 16px;
+      margin: 0 0 28px;
+      color: #6e7781;
+      font-size: 14px;
+    }}
+    .content {{
+      border: 1px solid #d8dee4;
+      border-radius: 8px;
+      background: #ffffff;
+      padding: 24px;
+      font-size: 16px;
+      line-height: 1.8;
+      white-space: normal;
+      overflow-wrap: anywhere;
+    }}
+    .details {{
+      margin: 24px 0;
+      border-top: 1px solid #d8dee4;
+      border-bottom: 1px solid #d8dee4;
+      padding: 14px 0;
+    }}
+    dl {{
+      display: grid;
+      grid-template-columns: minmax(88px, 160px) 1fr;
+      gap: 10px 16px;
+      margin: 0;
+      font-size: 14px;
+      line-height: 1.6;
+    }}
+    dt {{
+      color: #6e7781;
+    }}
+    dd {{
+      margin: 0;
+      color: #24292f;
+      overflow-wrap: anywhere;
+    }}
+    @media (max-width: 640px) {{
+      main {{
+        width: min(100% - 24px, 880px);
+        padding-top: 28px;
+      }}
+      .content {{
+        padding: 18px;
+      }}
+      dl {{
+        grid-template-columns: 1fr;
+        gap: 2px 0;
+      }}
+    }}
+  </style>
+</head>
+<body>
+  <main>
+    <span class="eyebrow">{page_type}</span>
+    <h1>{title}</h1>
+    {summary}
+    <div class="meta">{source}<span class="meta-item">创建时间：{created_at}</span></div>
+    {metadata}
+    <article class="content">{content}</article>
+  </main>
+</body>
+</html>"#,
+        title = escape_html(&page.title),
+        summary = summary,
+        source = source,
+        created_at = escape_html(&created_at),
+        metadata = metadata,
+        content = content,
+        page_type = page_type
+    )
+}
+
+fn render_metadata(metadata: &str) -> String {
+    let Ok(Value::Object(values)) = serde_json::from_str::<Value>(metadata) else {
+        return String::new();
+    };
+
+    let items = values
+        .into_iter()
+        .filter_map(|(key, value)| {
+            let value = metadata_value_to_text(value)?;
+            Some(format!(
+                "<dt>{}</dt><dd>{}</dd>",
+                escape_html(metadata_label(&key)),
+                escape_html(&value)
+            ))
+        })
+        .collect::<Vec<_>>()
+        .join("");
+
+    if items.is_empty() {
+        String::new()
+    } else {
+        format!(r#"<section class="details"><dl>{items}</dl></section>"#)
+    }
+}
+
+fn metadata_label(key: &str) -> &str {
+    match key {
+        "from" => "发件人",
+        "subject" => "主题",
+        "message_id" => "邮件 ID",
+        "mailbox" => "邮箱目录",
+        "uid" => "UID",
+        "reminder" => "提醒",
+        "received_at" => "收件时间",
+        other => other,
+    }
+}
+
+fn metadata_value_to_text(value: Value) -> Option<String> {
+    match value {
+        Value::Null => None,
+        Value::String(value) => {
+            let value = value.trim().to_string();
+            (!value.is_empty()).then_some(value)
+        }
+        Value::Array(values) if values.is_empty() => None,
+        Value::Object(values) if values.is_empty() => None,
+        other => Some(other.to_string()),
+    }
+}
+
+fn render_text_content(content: &str) -> String {
+    content
+        .lines()
+        .map(|line| {
+            if line.trim().is_empty() {
+                "<br>".to_string()
+            } else {
+                escape_html(line)
+            }
+        })
+        .collect::<Vec<_>>()
+        .join("<br>\n")
+}
+
+fn escape_html(value: &str) -> String {
+    let mut escaped = String::with_capacity(value.len());
+    for ch in value.chars() {
+        match ch {
+            '&' => escaped.push_str("&amp;"),
+            '<' => escaped.push_str("&lt;"),
+            '>' => escaped.push_str("&gt;"),
+            '"' => escaped.push_str("&quot;"),
+            '\'' => escaped.push_str("&#39;"),
+            _ => escaped.push(ch),
+        }
+    }
+    escaped
+}
+
+fn api_bad_request(message: impl Into<String>) -> ApiError {
+    (
+        StatusCode::BAD_REQUEST,
+        Json(json!({
+            "success": false,
+            "message": message.into(),
+        })),
+    )
+}
+
+fn api_internal_error(error: anyhow::Error) -> ApiError {
+    eprintln!("创建 web 页面失败: {error}");
+    (
+        StatusCode::INTERNAL_SERVER_ERROR,
+        Json(json!({
+            "success": false,
+            "message": "创建 web 页面失败",
+        })),
+    )
+}
+
+fn html_not_found() -> HtmlError {
+    (
+        StatusCode::NOT_FOUND,
+        Html(render_error_page("页面不存在", "没有找到对应的内容页面")),
+    )
+}
+
+fn html_internal_error(error: anyhow::Error) -> HtmlError {
+    eprintln!("读取 web 页面失败: {error}");
+    (
+        StatusCode::INTERNAL_SERVER_ERROR,
+        Html(render_error_page("页面暂时不可用", "读取页面内容失败")),
+    )
+}
+
+fn render_error_page(title: &str, message: &str) -> String {
+    format!(
+        r#"<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{title}</title>
+</head>
+<body style="margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:#f6f7f9;color:#1f2328;">
+  <main style="width:min(760px,calc(100% - 32px));margin:0 auto;padding:48px 0;">
+    <h1 style="font-size:32px;line-height:1.2;margin:0 0 12px;">{title}</h1>
+    <p style="font-size:16px;line-height:1.7;margin:0;color:#57606a;">{message}</p>
+  </main>
+</body>
+</html>"#,
+        title = escape_html(title),
+        message = escape_html(message)
+    )
+}