refactor: apply repository naming contract

Apply the accepted pre-release package, service, type, directory, and role renames as one repository-wide change.

examples/acp-agent/pty-snapshot-backend.mjs

@@ -53,11 +53,11 @@ class SnapshotSession {
 /** Cordis plugin name. */
 export const name = 'pty-snapshot-backend'
 /** Required PTY service. */
-export const inject = ['pty']
+export const inject = ['terminals']
 
 /** Register the deterministic snapshot backend. */
 export function apply(ctx) {
-  ctx.pty.registerBackend({
+  ctx.terminals.registerBackend({
     type: 'shell',
     spawn: () => Promise.resolve(new SnapshotSession()),
   })