feat(cli): 强制使用用户现有浏览器并移除 profile/channel

- 禁用 --profile/AGENT_BROWSER_PROFILE 与 --channel/AGENT_BROWSER_CHANNEL，并给出项目策略提示

- 默认模式强制连接 localhost:9333，连接失败直接报错，不再自动回退新开浏览器

- 同步更新 README、技能文档、docs 与 --help 输出

- 版本升级到 0.14.0-fork.2 并同步 cli/Cargo.toml 与 Cargo.lock

cli/src/connection.rs

@@ -215,7 +215,6 @@ pub fn ensure_daemon(
     proxy_bypass: Option<&str>,
     ignore_https_errors: bool,
     allow_file_access: bool,
-    profile: Option<&str>,
     state: Option<&str>,
     provider: Option<&str>,
     device: Option<&str>,
@@ -345,10 +344,6 @@ pub fn ensure_daemon(
             cmd.env("AGENT_BROWSER_ALLOW_FILE_ACCESS", "1");
         }
 
-        if let Some(prof) = profile {
-            cmd.env("AGENT_BROWSER_PROFILE", prof);
-        }
-
         if let Some(st) = state {
             cmd.env("AGENT_BROWSER_STATE", st);
         }
@@ -433,10 +428,6 @@ pub fn ensure_daemon(
             cmd.env("AGENT_BROWSER_ALLOW_FILE_ACCESS", "1");
         }
 
-        if let Some(prof) = profile {
-            cmd.env("AGENT_BROWSER_PROFILE", prof);
-        }
-
         if let Some(st) = state {
             cmd.env("AGENT_BROWSER_STATE", st);
         }