fix(fctool): 修复 git tools 中的类型不匹配问题

- blob.rs: 修复 resolve_oid 返回 commit OID 而非 blob OID 的问题
- tree.rs: 修复 git_tree_ls_exec 直接传递 commit OID 给 tree_list 的问题
- 所有修改使类型合约与 git domain API 匹配

libs/fctool/src/git_tools/blob.rs

@@ -16,8 +16,8 @@ async fn git_blob_info_exec(
     let oid = p.get("oid").and_then(|v| v.as_str()).ok_or("missing oid")?;
 
     let domain = ctx.open_repo(project_name, repo_name).await?;
-    let commit_oid = resolve_oid(&domain, oid)?;
-    let info = domain.blob_get(&commit_oid).map_err(|e| e.to_string())?;
+    let blob_oid = git::commit::types::CommitOid::new(oid);
+    let info = domain.blob_get(&blob_oid).map_err(|e| e.to_string())?;
 
     Ok(serde_json::json!({
         "oid": info.oid.to_string(),
@@ -37,10 +37,10 @@ async fn git_blob_exists_exec(
     let oid = p.get("oid").and_then(|v| v.as_str()).ok_or("missing oid")?;
 
     let domain = ctx.open_repo(project_name, repo_name).await?;
-    let commit_oid = resolve_oid(&domain, oid)?;
-    let exists = domain.blob_exists(&commit_oid);
+    let blob_oid = git::commit::types::CommitOid::new(oid);
+    let exists = domain.blob_exists(&blob_oid);
 
-    Ok(serde_json::json!({ "oid": commit_oid.to_string(), "exists": exists }))
+    Ok(serde_json::json!({ "oid": blob_oid.to_string(), "exists": exists }))
 }
 
 async fn git_blob_content_exec(
@@ -55,8 +55,8 @@ async fn git_blob_content_exec(
     let max_size = p.get("max_size").and_then(|v| v.as_u64()).unwrap_or(1_048_576) as usize; // 1MB default
 
     let domain = ctx.open_repo(project_name, repo_name).await?;
-    let commit_oid = resolve_oid(&domain, oid)?;
-    let blob = domain.blob_content(&commit_oid).map_err(|e| e.to_string())?;
+    let blob_oid = git::commit::types::CommitOid::new(oid);
+    let blob = domain.blob_content(&blob_oid).map_err(|e| e.to_string())?;
 
     if blob.size > max_size {
         return Err(format!(
@@ -109,18 +109,6 @@ async fn git_blob_create_exec(
     }))
 }
 
-fn resolve_oid(
-    domain: &git::GitDomain,
-    rev: &str,
-) -> Result<git::commit::types::CommitOid, String> {
-    if rev.len() == 40 && rev.chars().all(|c| c.is_ascii_hexdigit()) {
-        Ok(git::commit::types::CommitOid::new(rev))
-    } else if let Ok(Some(oid)) = domain.ref_target(rev) {
-        Ok(oid)
-    } else {
-        domain.commit_get_prefix(rev).map_err(|e| e.to_string()).map(|m| m.oid)
-    }
-}
 
 pub fn register_git_tools(registry: &mut ToolRegistry) {
     // git_blob_info

libs/fctool/src/git_tools/commit.rs

@@ -47,16 +47,11 @@ async fn git_log_exec(ctx: GitToolCtx, args: serde_json::Value) -> Result<serde_
     Ok(serde_json::to_value(result).map_err(|e| e.to_string())?)
 }
 
-/// Resolve a rev string to commit metadata. Tries full OID first (exactly 40 hex chars),
-/// then reference name resolution (branch, tag, HEAD), then hex prefix lookup.
+/// Resolve a rev string to commit metadata using the full rev-parse machinery
+/// (branch names, tags, HEAD, hex prefixes, etc.).
 fn resolve_commit(domain: &git::GitDomain, rev: &str) -> Result<git::commit::types::CommitMeta, String> {
-    if rev.len() == 40 && rev.chars().all(|c| c.is_ascii_hexdigit()) {
-        domain.commit_get(&git::commit::types::CommitOid::new(rev)).map_err(|e| e.to_string())
-    } else if let Ok(Some(oid)) = domain.ref_target(rev) {
-        domain.commit_get(&oid).map_err(|e| e.to_string())
-    } else {
-        domain.commit_get_prefix(rev).map_err(|e| e.to_string())
-    }
+    let oid = domain.resolve_rev(rev).map_err(|e| e.to_string())?;
+    domain.commit_get(&oid).map_err(|e| e.to_string())
 }
 
 async fn git_show_exec(ctx: GitToolCtx, args: serde_json::Value) -> Result<serde_json::Value, String> {

libs/fctool/src/git_tools/tree.rs

@@ -5,16 +5,10 @@ use agent::{ToolDefinition, ToolHandler, ToolParam, ToolRegistry, ToolSchema};
 use base64::Engine;
 use std::collections::HashMap;
 
-/// Resolve a rev string to a commit OID. Tries full OID first (exactly 40 hex chars),
-/// then reference name resolution (branch, tag, HEAD), then hex prefix lookup.
+/// Resolve a rev string to a commit OID using the full rev-parse machinery
+/// (branch names, tags, HEAD, hex prefixes, etc.).
 fn resolve_commit_oid(domain: &git::GitDomain, rev: &str) -> Result<git::commit::types::CommitOid, String> {
-    if rev.len() == 40 && rev.chars().all(|c| c.is_ascii_hexdigit()) {
-        Ok(git::commit::types::CommitOid::new(rev))
-    } else if let Ok(Some(oid)) = domain.ref_target(rev) {
-        Ok(oid)
-    } else {
-        domain.commit_get_prefix(rev).map_err(|e| e.to_string()).map(|m| m.oid)
-    }
+    domain.resolve_rev(rev).map_err(|e| e.to_string())
 }
 
 async fn git_file_content_exec(ctx: GitToolCtx, args: serde_json::Value) -> Result<serde_json::Value, String> {
@@ -54,14 +48,18 @@ async fn git_tree_ls_exec(ctx: GitToolCtx, args: serde_json::Value) -> Result<se
     let rev = p.get("rev").and_then(|v| v.as_str()).map(|s| s.to_string()).unwrap_or_else(|| "HEAD".to_string());
 
     let domain = ctx.open_repo(project_name, repo_name).await?;
-    let commit_oid = resolve_commit_oid(&domain, &rev).map_err(|e| e.to_string())?;
+    let commit_oid = resolve_commit_oid(&domain, &rev)?;
+
+    // Get tree OID from commit
+    let commit_meta = domain.commit_get(&commit_oid).map_err(|e| e.to_string())?;
+    let tree_oid = &commit_meta.tree_id;
 
     let entries = match dir_path {
         Some(ref dp) => {
-            let entry = domain.tree_entry_by_path(&commit_oid, dp).map_err(|e| e.to_string())?;
+            let entry = domain.tree_entry_by_path(tree_oid, dp).map_err(|e| e.to_string())?;
             domain.tree_list(&entry.oid).map_err(|e| e.to_string())?
         }
-        None => domain.tree_list(&commit_oid).map_err(|e| e.to_string())?,
+        None => domain.tree_list(tree_oid).map_err(|e| e.to_string())?,
     };
 
     let result: Vec<_> = entries.iter().map(|e| {