refactor: 统一项目名称从OpenFang到ZCLAW

重构所有代码和文档中的项目名称，将OpenFang统一更新为ZCLAW。包括：
- 配置文件中的项目名称
- 代码注释和文档引用
- 环境变量和路径
- 类型定义和接口名称
- 测试用例和模拟数据

同时优化部分代码结构，移除未使用的模块，并更新相关依赖项。

crates/zclaw-growth/src/summarizer.rs

@@ -0,0 +1,192 @@
+//! Memory Summarizer - L0/L1 Summary Generation
+//!
+//! Provides trait and functions for generating layered summaries of memory entries:
+//! - L1 Overview: 1-2 sentence summary (~200 tokens)
+//! - L0 Abstract: 3-5 keywords (~100 tokens)
+//!
+//! The trait-based design allows zclaw-growth to remain decoupled from any
+//! specific LLM implementation. The Tauri layer provides a concrete implementation.
+
+use crate::types::MemoryEntry;
+
+/// LLM driver for summary generation.
+/// Implementations call an LLM API to produce concise summaries.
+#[async_trait::async_trait]
+pub trait SummaryLlmDriver: Send + Sync {
+    /// Generate a short summary (1-2 sentences, ~200 tokens) for a memory entry.
+    async fn generate_overview(&self, entry: &MemoryEntry) -> Result<String, String>;
+
+    /// Generate keyword extraction (3-5 keywords, ~100 tokens) for a memory entry.
+    async fn generate_abstract(&self, entry: &MemoryEntry) -> Result<String, String>;
+}
+
+/// Generate an L1 overview prompt for the LLM.
+pub fn overview_prompt(entry: &MemoryEntry) -> String {
+    format!(
+        r#"Summarize the following memory entry in 1-2 concise sentences (in the same language as the content).
+Focus on the key information. Do not add any preamble or explanation.
+
+Memory type: {}
+Category: {}
+Content: {}"#,
+        entry.memory_type,
+        entry.uri.rsplit('/').next().unwrap_or("unknown"),
+        entry.content
+    )
+}
+
+/// Generate an L0 abstract prompt for the LLM.
+pub fn abstract_prompt(entry: &MemoryEntry) -> String {
+    format!(
+        r#"Extract 3-5 keywords or key phrases from the following memory entry.
+Output ONLY the keywords, comma-separated, in the same language as the content.
+Do not add any preamble, explanation, or numbering.
+
+Memory type: {}
+Content: {}"#,
+        entry.memory_type, entry.content
+    )
+}
+
+/// Generate both L1 overview and L0 abstract for a memory entry.
+/// Returns (overview, abstract_summary) tuple.
+pub async fn generate_summaries(
+    driver: &dyn SummaryLlmDriver,
+    entry: &MemoryEntry,
+) -> (Option<String>, Option<String>) {
+    // Generate L1 overview
+    let overview = match driver.generate_overview(entry).await {
+        Ok(text) => {
+            let cleaned = clean_summary(&text);
+            if !cleaned.is_empty() {
+                Some(cleaned)
+            } else {
+                None
+            }
+        }
+        Err(e) => {
+            tracing::debug!("[Summarizer] Failed to generate overview for {}: {}", entry.uri, e);
+            None
+        }
+    };
+
+    // Generate L0 abstract
+    let abstract_summary = match driver.generate_abstract(entry).await {
+        Ok(text) => {
+            let cleaned = clean_summary(&text);
+            if !cleaned.is_empty() {
+                Some(cleaned)
+            } else {
+                None
+            }
+        }
+        Err(e) => {
+            tracing::debug!("[Summarizer] Failed to generate abstract for {}: {}", entry.uri, e);
+            None
+        }
+    };
+
+    (overview, abstract_summary)
+}
+
+/// Clean LLM response: strip quotes, whitespace, prefixes
+fn clean_summary(text: &str) -> String {
+    text.trim()
+        .trim_start_matches('"')
+        .trim_end_matches('"')
+        .trim_start_matches('\'')
+        .trim_end_matches('\'')
+        .trim_start_matches("摘要：")
+        .trim_start_matches("摘要:")
+        .trim_start_matches("关键词：")
+        .trim_start_matches("关键词:")
+        .trim_start_matches("Overview:")
+        .trim_start_matches("overview:")
+        .trim()
+        .to_string()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::types::MemoryType;
+
+    struct MockSummaryDriver;
+
+    #[async_trait::async_trait]
+    impl SummaryLlmDriver for MockSummaryDriver {
+        async fn generate_overview(&self, entry: &MemoryEntry) -> Result<String, String> {
+            Ok(format!("Summary of: {}", &entry.content[..entry.content.len().min(30)]))
+        }
+
+        async fn generate_abstract(&self, _entry: &MemoryEntry) -> Result<String, String> {
+            Ok("keyword1, keyword2, keyword3".to_string())
+        }
+    }
+
+    fn make_entry(content: &str) -> MemoryEntry {
+        MemoryEntry::new("test-agent", MemoryType::Knowledge, "test", content.to_string())
+    }
+
+    #[tokio::test]
+    async fn test_generate_summaries() {
+        let driver = MockSummaryDriver;
+        let entry = make_entry("This is a test memory entry about Rust programming.");
+
+        let (overview, abstract_summary) = generate_summaries(&driver, &entry).await;
+
+        assert!(overview.is_some());
+        assert!(abstract_summary.is_some());
+        assert!(overview.unwrap().contains("Summary of"));
+        assert!(abstract_summary.unwrap().contains("keyword1"));
+    }
+
+    #[tokio::test]
+    async fn test_generate_summaries_handles_error() {
+        struct FailingDriver;
+        #[async_trait::async_trait]
+        impl SummaryLlmDriver for FailingDriver {
+            async fn generate_overview(&self, _entry: &MemoryEntry) -> Result<String, String> {
+                Err("LLM unavailable".to_string())
+            }
+            async fn generate_abstract(&self, _entry: &MemoryEntry) -> Result<String, String> {
+                Err("LLM unavailable".to_string())
+            }
+        }
+
+        let driver = FailingDriver;
+        let entry = make_entry("test content");
+
+        let (overview, abstract_summary) = generate_summaries(&driver, &entry).await;
+
+        assert!(overview.is_none());
+        assert!(abstract_summary.is_none());
+    }
+
+    #[test]
+    fn test_clean_summary() {
+        assert_eq!(clean_summary("\"hello world\""), "hello world");
+        assert_eq!(clean_summary("摘要：你好"), "你好");
+        assert_eq!(clean_summary("  keyword1, keyword2  "), "keyword1, keyword2");
+        assert_eq!(clean_summary("Overview: something"), "something");
+    }
+
+    #[test]
+    fn test_overview_prompt() {
+        let entry = make_entry("User prefers dark mode and compact UI");
+        let prompt = overview_prompt(&entry);
+
+        assert!(prompt.contains("1-2 concise sentences"));
+        assert!(prompt.contains("User prefers dark mode"));
+        assert!(prompt.contains("knowledge"));
+    }
+
+    #[test]
+    fn test_abstract_prompt() {
+        let entry = make_entry("Rust is a systems programming language");
+        let prompt = abstract_prompt(&entry);
+
+        assert!(prompt.contains("3-5 keywords"));
+        assert!(prompt.contains("Rust is a systems"));
+    }
+}