feat: add plugin v1 system

Add manifest-driven plugin actions, event hooks, pane entrypoints, link handlers, and host APIs.

Support plugin link, GitHub install, build commands, installed plugin registry, pane movement, runtime context, and plugin docs.

1 files changed, 20 insertions, 1 deletions

diff --git a/src/cli/tab.rs b/src/cli/tab.rs
index 3fcc0647..955a1ba1 100644
--- a/src/cli/tab.rs
+++ b/src/cli/tab.rs
@@ -1,3 +1,5 @@
+use std::collections::HashMap;
+
 use crate::api::schema::{
     Method, Request, TabCreateParams, TabListParams, TabRenameParams, TabTarget,
 };
@@ -58,6 +60,7 @@ fn tab_create(args: &[String]) -> std::io::Result<i32> {
     let mut cwd = None;
     let mut focus = false;
     let mut label = None;
+    let mut env = HashMap::new();
 
     let mut index = 0;
     while index < args.len() {
@@ -94,6 +97,21 @@ fn tab_create(args: &[String]) -> std::io::Result<i32> {
                 focus = false;
                 index += 1;
             }
+            "--env" => {
+                let Some(value) = args.get(index + 1) else {
+                    eprintln!("missing value for --env");
+                    return Ok(2);
+                };
+                let (key, value) = match super::parse_env_assignment(value) {
+                    Ok(pair) => pair,
+                    Err(err) => {
+                        eprintln!("{err}");
+                        return Ok(2);
+                    }
+                };
+                env.insert(key, value);
+                index += 2;
+            }
             other => {
                 eprintln!("unknown option: {other}");
                 return Ok(2);
@@ -108,6 +126,7 @@ fn tab_create(args: &[String]) -> std::io::Result<i32> {
             cwd,
             focus,
             label,
+            env,
         }),
     })?)
 }
@@ -185,7 +204,7 @@ fn print_tab_help() {
     eprintln!("herdr tab commands:");
     eprintln!("  herdr tab list [--workspace <workspace_id>]");
     eprintln!(
-        "  herdr tab create [--workspace <workspace_id>] [--cwd PATH] [--label TEXT] [--focus] [--no-focus]"
+        "  herdr tab create [--workspace <workspace_id>] [--cwd PATH] [--label TEXT] [--env KEY=VALUE] [--focus] [--no-focus]"
     );
     eprintln!("  herdr tab get <tab_id>");
     eprintln!("  herdr tab focus <tab_id>");