feat: auto-install Python deps from template pyproject.toml via uv

ExternalToolManager.discover() now accepts template root dir, detects
pyproject.toml and runs `uv sync` to create a venv. Tool invocation and
schema discovery inject the venv PATH/VIRTUAL_ENV so template tools can
import declared dependencies without manual installation.

src/agent.rs

@@ -698,13 +698,13 @@ fn build_step_tools() -> Vec<Tool> {
             },
             "required": ["reason"]
         })),
-        make_tool("step_done", "完成当前步骤。必须提供摘要。可选声明本步骤的产出物。", serde_json::json!({
+        make_tool("step_done", "完成当前步骤。必须提供摘要和产出物列表（无产出物时传空数组）。", serde_json::json!({
             "type": "object",
             "properties": {
                 "summary": { "type": "string", "description": "本步骤的工作摘要" },
                 "artifacts": {
                     "type": "array",
-                    "description": "本步骤的产出物列表",
+                    "description": "本步骤的产出物列表。无产出物时传空数组 []",
                     "items": {
                         "type": "object",
                         "properties": {
@@ -717,7 +717,7 @@ fn build_step_tools() -> Vec<Tool> {
                     }
                 }
             },
-            "required": ["summary"]
+            "required": ["summary", "artifacts"]
         })),
         tool_kb_search(),
         tool_kb_read(),

src/llm.rs

@@ -94,7 +94,7 @@ impl LlmClient {
     pub fn new(config: &LlmConfig) -> Self {
         Self {
             client: reqwest::Client::builder()
-                .timeout(std::time::Duration::from_secs(120))
+                .timeout(std::time::Duration::from_secs(300))
                 .connect_timeout(std::time::Duration::from_secs(10))
                 .build()
                 .expect("Failed to build HTTP client"),

src/template.rs

@@ -550,8 +550,7 @@ impl LoadedTemplate {
             .await
             .unwrap_or_default();
 
-        let tools_dir = base.join("tools");
-        let external_tools = ExternalToolManager::discover(&tools_dir).await;
+        let external_tools = ExternalToolManager::discover(base).await;
         tracing::info!("Template '{}': {} external tools", template_id, external_tools.len());
 
         let kb_dir = base.join("kb");

src/tools.rs

@@ -11,18 +11,73 @@ struct ExternalTool {
 
 pub struct ExternalToolManager {
     tools: HashMap<String, ExternalTool>,
+    venv_bin: Option<PathBuf>,
 }
 
 impl ExternalToolManager {
-    /// Scan a tools/ directory, calling `--print-schema` on each executable to discover tools.
-    pub async fn discover(tools_dir: &Path) -> Self {
+    /// Build the PATH string with venv bin prepended (if present).
+    fn env_path(&self) -> Option<String> {
+        self.venv_bin.as_ref().map(|venv_bin| {
+            format!(
+                "{}:{}",
+                venv_bin.display(),
+                std::env::var("PATH").unwrap_or_default()
+            )
+        })
+    }
+
+    /// Scan a template directory for external tools and Python dependencies.
+    ///
+    /// - Discovers executables in `template_dir/tools/`
+    /// - If `template_dir/pyproject.toml` exists, runs `uv sync` to create a venv
+    pub async fn discover(template_dir: &Path) -> Self {
         let mut tools = HashMap::new();
 
-        let mut entries = match tokio::fs::read_dir(tools_dir).await {
-            Ok(e) => e,
-            Err(_) => return Self { tools },
+        // --- Python venv setup ---
+        let venv_bin = if template_dir.join("pyproject.toml").is_file() {
+            tracing::info!("Found pyproject.toml in {}, running uv sync", template_dir.display());
+            let output = tokio::process::Command::new("uv")
+                .args(["sync", "--project", &template_dir.to_string_lossy(), "--quiet"])
+                .output()
+                .await;
+            match output {
+                Ok(o) if o.status.success() => {
+                    let bin = template_dir.join(".venv/bin");
+                    tracing::info!("uv sync succeeded, venv bin: {}", bin.display());
+                    Some(bin)
+                }
+                Ok(o) => {
+                    tracing::warn!(
+                        "uv sync failed: {}",
+                        String::from_utf8_lossy(&o.stderr)
+                    );
+                    None
+                }
+                Err(e) => {
+                    tracing::warn!("Failed to run uv sync: {}", e);
+                    None
+                }
+            }
+        } else {
+            None
         };
 
+        // --- Tool discovery ---
+        let tools_dir = template_dir.join("tools");
+        let mut entries = match tokio::fs::read_dir(&tools_dir).await {
+            Ok(e) => e,
+            Err(_) => return Self { tools, venv_bin },
+        };
+
+        // Build PATH with venv for --print-schema calls
+        let env_path = venv_bin.as_ref().map(|bin| {
+            format!(
+                "{}:{}",
+                bin.display(),
+                std::env::var("PATH").unwrap_or_default()
+            )
+        });
+
         while let Ok(Some(entry)) = entries.next_entry().await {
             let path = entry.path();
 
@@ -41,12 +96,16 @@ impl ExternalToolManager {
                 continue;
             }
 
-            // Call --print-schema
-            let output = match tokio::process::Command::new(&path)
-                .arg("--print-schema")
-                .output()
-                .await
-            {
+            // Call --print-schema (with venv PATH if available)
+            let mut cmd = tokio::process::Command::new(&path);
+            cmd.arg("--print-schema");
+            if let Some(ref p) = env_path {
+                cmd.env("PATH", p);
+            }
+            if let Some(ref bin) = venv_bin {
+                cmd.env("VIRTUAL_ENV", bin.parent().unwrap().display().to_string());
+            }
+            let output = match cmd.output().await {
                 Ok(o) => o,
                 Err(e) => {
                     tracing::warn!("Failed to run --print-schema on {}: {}", path.display(), e);
@@ -102,7 +161,7 @@ impl ExternalToolManager {
             );
         }
 
-        Self { tools }
+        Self { tools, venv_bin }
     }
 
     /// Return all discovered Tool definitions for LLM API calls.
@@ -122,11 +181,15 @@ impl ExternalToolManager {
             .get(name)
             .ok_or_else(|| anyhow::anyhow!("External tool not found: {}", name))?;
 
-        let output = tokio::process::Command::new(&tool.path)
-            .arg(args_json)
-            .current_dir(workdir)
-            .output()
-            .await?;
+        let mut cmd = tokio::process::Command::new(&tool.path);
+        cmd.arg(args_json).current_dir(workdir);
+        if let Some(ref p) = self.env_path() {
+            cmd.env("PATH", p);
+        }
+        if let Some(ref venv_bin) = self.venv_bin {
+            cmd.env("VIRTUAL_ENV", venv_bin.parent().unwrap().display().to_string());
+        }
+        let output = cmd.output().await?;
 
         let stdout = String::from_utf8_lossy(&output.stdout).to_string();
         let stderr = String::from_utf8_lossy(&output.stderr).to_string();

web/src/components/PlanSection.vue

@@ -2,8 +2,11 @@
 import { ref } from 'vue'
 import type { PlanStepInfo } from '../types'
 
-defineProps<{
+const BASE = `${import.meta.env.BASE_URL.replace(/\/$/, '')}/api`
+
+const props = defineProps<{
   steps: PlanStepInfo[]
+  projectId: string
 }>()
 
 const emit = defineEmits<{
@@ -11,6 +14,9 @@ const emit = defineEmits<{
 }>()
 
 const expandedSteps = ref<Set<number>>(new Set())
+const expandedArtifact = ref<{ stepOrder: number; path: string } | null>(null)
+const artifactContent = ref<string>('')
+const artifactLoading = ref(false)
 
 function toggleStep(order: number) {
   if (expandedSteps.value.has(order)) {
@@ -33,6 +39,41 @@ function quoteStep(e: Event, step: PlanStepInfo) {
   e.stopPropagation()
   emit('quote', `[步骤${step.order}] ${step.description}`)
 }
+
+function artifactIcon(type: string) {
+  switch (type) {
+    case 'json': return '{ }'
+    case 'markdown': return 'MD'
+    default: return '📄'
+  }
+}
+
+async function toggleArtifact(e: Event, stepOrder: number, path: string) {
+  e.stopPropagation()
+  if (expandedArtifact.value?.stepOrder === stepOrder && expandedArtifact.value?.path === path) {
+    expandedArtifact.value = null
+    return
+  }
+  expandedArtifact.value = { stepOrder, path }
+  artifactLoading.value = true
+  artifactContent.value = ''
+  try {
+    const res = await fetch(`${BASE}/projects/${props.projectId}/files/${path}`)
+    if (res.ok) {
+      artifactContent.value = await res.text()
+    } else {
+      artifactContent.value = `Error: ${res.status} ${res.statusText}`
+    }
+  } catch (err) {
+    artifactContent.value = `Error: ${err}`
+  } finally {
+    artifactLoading.value = false
+  }
+}
+
+function isArtifactExpanded(stepOrder: number, path: string) {
+  return expandedArtifact.value?.stepOrder === stepOrder && expandedArtifact.value?.path === path
+}
 </script>
 
 <template>
@@ -60,9 +101,24 @@ function quoteStep(e: Event, step: PlanStepInfo) {
           {{ step.command }}
         </div>
         <div v-if="step.artifacts?.length" class="step-artifacts">
-          <span v-for="a in step.artifacts" :key="a.path" class="artifact-tag">
-            📄 {{ a.name }} <span class="artifact-type">{{ a.artifact_type }}</span>
-          </span>
+          <button
+            v-for="a in step.artifacts"
+            :key="a.path"
+            class="artifact-tag"
+            :class="{ active: isArtifactExpanded(step.order, a.path) }"
+            @click="toggleArtifact($event, step.order, a.path)"
+            :title="a.description || a.path"
+          >
+            <span class="artifact-icon">{{ artifactIcon(a.artifact_type) }}</span>
+            <span class="artifact-name">{{ a.name }}</span>
+          </button>
+          <div
+            v-if="expandedArtifact && step.artifacts.some(a => isArtifactExpanded(step.order, a.path))"
+            class="artifact-content"
+          >
+            <div v-if="artifactLoading" class="artifact-loading">加载中...</div>
+            <pre v-else>{{ artifactContent }}</pre>
+          </div>
         </div>
       </div>
       <div v-if="!steps.length" class="empty-state">
@@ -209,12 +265,59 @@ function quoteStep(e: Event, step: PlanStepInfo) {
   background: var(--bg-tertiary);
   padding: 2px 8px;
   border-radius: 4px;
+  border: 1px solid transparent;
+  cursor: pointer;
+  transition: all 0.15s;
 }
 
-.artifact-type {
-  font-size: 10px;
+.artifact-tag:hover {
+  border-color: var(--accent);
   color: var(--accent);
-  opacity: 0.8;
+}
+
+.artifact-tag.active {
+  border-color: var(--accent);
+  background: rgba(79, 195, 247, 0.12);
+  color: var(--accent);
+}
+
+.artifact-icon {
+  font-size: 10px;
+  font-weight: 600;
+  opacity: 0.7;
+}
+
+.artifact-name {
+  font-weight: 500;
+}
+
+.artifact-content {
+  width: 100%;
+  margin-top: 4px;
+  border-radius: 4px;
+  background: var(--bg-card);
+  border: 1px solid var(--border);
+  overflow: hidden;
+}
+
+.artifact-content pre {
+  margin: 0;
+  padding: 8px 12px;
+  font-size: 11px;
+  line-height: 1.5;
+  color: var(--text-primary);
+  overflow-x: auto;
+  max-height: 400px;
+  overflow-y: auto;
+  white-space: pre-wrap;
+  word-break: break-all;
+}
+
+.artifact-loading {
+  padding: 12px;
+  text-align: center;
+  color: var(--text-secondary);
+  font-size: 12px;
 }
 
 .empty-state {

web/src/components/ReportView.vue

@@ -40,12 +40,12 @@ onMounted(async () => {
   try {
     const res = await api.getReport(props.workflowId)
     html.value = await marked.parse(res.report)
-    await renderMermaid()
   } catch (e: any) {
     error.value = e.message
   } finally {
     loading.value = false
   }
+  await renderMermaid()
 })
 </script>
 

web/src/components/WorkflowView.vue

@@ -180,7 +180,7 @@ async function onSubmitComment(text: string) {
       @submit="onSubmitRequirement"
     />
     <div class="plan-exec-row">
-      <PlanSection :steps="planSteps" @quote="addQuote" />
+      <PlanSection :steps="planSteps" :projectId="projectId" @quote="addQuote" />
       <div class="right-panel">
         <div class="tab-bar">
           <button class="tab-btn" :class="{ active: rightTab === 'log' }" @click="rightTab = 'log'">日志</button>