新增: 初始化 DevFlow 项目仓库

Tauri 2 + Vue 3 + Vite 6 桌面应用，Rust workspace 含 13 个 crate
(df-ai / df-storage / df-workflow / df-core / df-execute 等)。
核心能力：AI 聊天 agentic 循环(工具调用+人工审批)、工作流引擎、
任务/想法/项目/阶段管理、可追溯性，及配套前端组件。

crates/df-ideas/src/promotion.rs

@@ -0,0 +1,91 @@
+//! 想法晋升 — 将想法转为项目
+
+use anyhow::Result;
+
+use df_core::types::{IdeaId, ProjectId};
+
+use crate::capture::Idea;
+use crate::evaluator::Recommendation;
+
+/// 晋升结果
+#[derive(Debug, Clone)]
+pub struct PromotionResult {
+    pub idea_id: IdeaId,
+    pub project_id: ProjectId,
+    pub promoted: bool,
+    pub reason: String,
+}
+
+/// 晋升策略
+#[derive(Debug, Clone, Copy)]
+pub enum PromotionPolicy {
+    /// 自动晋升（评分达标时自动转为项目）
+    Auto,
+    /// 手动确认（需要人工审批）
+    Manual,
+    /// 半自动（AI 评估 + 人工确认）
+    SemiAuto,
+}
+
+/// 想法晋升器
+pub struct IdeaPromoter {
+    policy: PromotionPolicy,
+}
+
+impl IdeaPromoter {
+    /// 创建晋升器
+    pub fn new(policy: PromotionPolicy) -> Self {
+        Self { policy }
+    }
+
+    /// 评估并尝试晋升想法
+    ///
+    /// TODO: 接入 df-project 创建项目
+    pub fn try_promote(&self, idea: &Idea, recommendation: &Recommendation) -> Result<PromotionResult> {
+        match self.policy {
+            PromotionPolicy::Auto => {
+                if matches!(recommendation, Recommendation::StrongApprove | Recommendation::Approve) {
+                    self.do_promote(idea)
+                } else {
+                    Ok(PromotionResult {
+                        idea_id: idea.id.clone(),
+                        project_id: String::new(),
+                        promoted: false,
+                        reason: format!("评估建议 {:?}，未达到自动晋升标准", recommendation),
+                    })
+                }
+            }
+            PromotionPolicy::Manual => {
+                Ok(PromotionResult {
+                    idea_id: idea.id.clone(),
+                    project_id: String::new(),
+                    promoted: false,
+                    reason: "手动模式，等待人工审批".to_string(),
+                })
+            }
+            PromotionPolicy::SemiAuto => {
+                // TODO: AI 评估 + 人工确认流程
+                Ok(PromotionResult {
+                    idea_id: idea.id.clone(),
+                    project_id: String::new(),
+                    promoted: false,
+                    reason: "半自动模式，等待确认".to_string(),
+                })
+            }
+        }
+    }
+
+    /// 执行晋升操作
+    fn do_promote(&self, idea: &Idea) -> Result<PromotionResult> {
+        let project_id = df_core::types::new_id();
+        // TODO: 调用 df-project 创建项目
+        tracing::info!("想法 {} 晋升为项目 {}", idea.id, project_id);
+
+        Ok(PromotionResult {
+            idea_id: idea.id.clone(),
+            project_id,
+            promoted: true,
+            reason: "评估达标，自动晋升".to_string(),
+        })
+    }
+}