v2.2-paseo-providers: Paseo provider stack + v2.2.1 pane-scoped chat fixes

Ship Paseo-equivalent provider snapshot, AgentComposerBar, ACP dispatch
rewrite with streaming/persist, permission prompts, and agent commands.
Follow-up: pane-scoped chat resolution, CoderMessageList tool timeline,
WS user-delta replace, and inference orphan tool_call stripping.
Archive openspec v2-2; update CHANGELOG and CURRENT.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/coder/src/services/worktrees.ts

@@ -6,7 +6,7 @@
  * After the agent completes, we diff the worktree against HEAD and
  * queue the diff into pending_changes.
  */
-import { sshExec } from './ssh.js';
+import { hostExec } from './host-exec.js';
 
 const WORKTREE_BASE = '/tmp/booworktrees';
 
@@ -23,10 +23,10 @@ export async function createWorktree(
   const branchName = `task-${taskId}`;
 
   // Ensure the base directory exists
-  await sshExec(`mkdir -p ${WORKTREE_BASE}`, { signal: opts?.signal });
+  await hostExec(`mkdir -p ${WORKTREE_BASE}`, { signal: opts?.signal });
 
   // Create the worktree with a new branch from HEAD
-  const result = await sshExec(
+  const result = await hostExec(
     `git -C ${shellEscape(projectPath)} worktree add ${shellEscape(worktreePath)} -b ${shellEscape(branchName)} HEAD`,
     { signal: opts?.signal, timeoutMs: 30_000 },
   );
@@ -49,7 +49,7 @@ export async function diffWorktree(
 ): Promise<string> {
   // First, commit any uncommitted changes in the worktree so we can diff branches
   // Stage all changes
-  const addResult = await sshExec(
+  const addResult = await hostExec(
     `cd ${shellEscape(worktreePath)} && git add -A`,
     { signal: opts?.signal, timeoutMs: 30_000 },
   );
@@ -58,7 +58,7 @@ export async function diffWorktree(
   }
 
   // Check if there are staged changes
-  const statusResult = await sshExec(
+  const statusResult = await hostExec(
     `cd ${shellEscape(worktreePath)} && git diff --cached --quiet`,
     { signal: opts?.signal, timeoutMs: 10_000 },
   );
@@ -69,13 +69,13 @@ export async function diffWorktree(
   }
 
   // Commit staged changes (needed to produce a clean branch diff)
-  await sshExec(
+  await hostExec(
     `cd ${shellEscape(worktreePath)} && git -c user.email=boocoder@local -c user.name=BooCoder commit -m "task changes" --allow-empty`,
     { signal: opts?.signal, timeoutMs: 15_000 },
   );
 
   // Diff the worktree branch against the parent commit (HEAD of main tree)
-  const diffResult = await sshExec(
+  const diffResult = await hostExec(
     `git -C ${shellEscape(projectPath)} diff HEAD...$(git -C ${shellEscape(worktreePath)} rev-parse HEAD)`,
     { signal: opts?.signal, timeoutMs: 60_000 },
   );
@@ -99,13 +99,13 @@ export async function cleanupWorktree(
   const branchName = `task-${taskId}`;
 
   // Remove the worktree (--force handles dirty state)
-  await sshExec(
+  await hostExec(
     `git -C ${shellEscape(projectPath)} worktree remove ${shellEscape(worktreePath)} --force`,
     { timeoutMs: 15_000 },
   ).catch(() => {});
 
   // Delete the task branch
-  await sshExec(
+  await hostExec(
     `git -C ${shellEscape(projectPath)} branch -D ${shellEscape(branchName)}`,
     { timeoutMs: 10_000 },
   ).catch(() => {});