Refactored orchestrator for staged file handling, added structured prompt support, adjusted Feishu file handling

internal/agent/orchestrator_skill_selection_test.go

@@ -0,0 +1,48 @@
+package agent
+
+import (
+	"runtime"
+	"strings"
+	"testing"
+
+	"laodingbot/internal/knowledge"
+)
+
+func TestBuildQueryTokensIncludesChineseBigrams(t *testing.T) {
+	tokens := buildQueryTokens("请执行命令并查看文件")
+	joined := strings.Join(tokens, ",")
+	if !strings.Contains(joined, "命令") {
+		t.Fatalf("expected token contains 命令, got: %v", tokens)
+	}
+	if !strings.Contains(joined, "文件") {
+		t.Fatalf("expected token contains 文件, got: %v", tokens)
+	}
+}
+
+func TestSelectRelevantSkillsPrefersMatchingSkill(t *testing.T) {
+	o := &Orchestrator{
+		skills: []knowledge.Skill{
+			{Name: "文件系统查询专家", Content: "适用于目录、文件、路径、命令执行等场景"},
+			{Name: "天气查询", Content: "用于天气和空气质量查询"},
+			{Name: "日程助手", Content: "用于日程管理"},
+		},
+	}
+
+	selected := o.selectRelevantSkills("帮我执行命令查看某个文件", 2)
+	if len(selected) == 0 {
+		t.Fatal("expected non-empty selected skills")
+	}
+	if selected[0].Name != "文件系统查询专家" {
+		t.Fatalf("expected top skill 文件系统查询专家, got: %s", selected[0].Name)
+	}
+	if len(selected) > 2 {
+		t.Fatalf("expected at most 2 skills, got: %d", len(selected))
+	}
+}
+
+func TestFormatRuntimeContextForPromptIncludesGOOS(t *testing.T) {
+	doc := formatRuntimeContextForPrompt()
+	if !strings.Contains(strings.ToLower(doc), strings.ToLower(runtime.GOOS)) {
+		t.Fatalf("expected runtime context contains GOOS=%s, got: %s", runtime.GOOS, doc)
+	}
+}