fix: 架构审查修复 — broadcast、目标校验、import_csv 警告、workspace 元数据统一

- HIGH: CLI 所有修改命令补 broadcast_env_change()
- HIGH: --system/--user 互斥校验，不再静默忽略
- MEDIUM: gui/Cargo.toml 删冗余 serde_json（log 保留，lib.rs 实际使用）
- MEDIUM: import_csv 对跳过行输出 log::warn
- MEDIUM: ProfilePathEntry 从 core 重导出
- LOW: Cargo workspace.package 统一元数据

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

core/Cargo.toml

@@ -1,10 +1,10 @@
 [package]
 name = "path-editor-core"
-version = "5.0.0"
 description = "PathEditor core library — shared between GUI and CLI"
-authors = ["刘航宇"]
-license = "MIT"
-edition = "2021"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }

core/src/fs.rs

@@ -36,13 +36,17 @@ fn import_csv(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
     let mut sys = Vec::new();
     let mut usr = Vec::new();
     for line in content.lines() {
-        let fields: Vec<&str> = line.split(',').collect();
+        let trimmed = line.trim();
+        if trimmed.is_empty() { continue; }
+        let fields: Vec<&str> = trimmed.split(',').collect();
         if fields.len() >= 2 {
-            match fields[0].trim() {
+            match fields[0].trim().to_lowercase().as_str() {
                 "system" | "sys" => sys.push(fields[1].trim().to_string()),
                 "user" | "usr" => usr.push(fields[1].trim().to_string()),
-                _ => {}
+                _ => { log::warn!("import_csv: 无法识别的类型字段，已跳过: {trimmed}"); }
             }
+        } else {
+            log::warn!("import_csv: 格式不正确（缺逗号），已跳过: {trimmed}");
         }
     }
     if sys.is_empty() && usr.is_empty() {

core/src/lib.rs

@@ -6,5 +6,5 @@ pub mod registry;
 pub mod scanner;
 pub mod system;
 
-pub use profiles::{ProfileData, ProfileMeta};
+pub use profiles::{ProfileData, ProfileMeta, ProfilePathEntry};
 pub use scanner::{ConflictEntry, ConflictLocation, ToolGroup};