fix(cli-demo): forward the complete spine config

Align the one-shot app with the shared agent-spine contract that landed on master after this branch began. Expose maxParallelToolCalls, dshHome, toolBash, and toolTasks through the Loader schema and route them with pickSpineConfig().

This restores deployment control over tool-call concurrency, the shared Harness home, background bash, and task_output wait bounds instead of silently retaining owner defaults.

Exercise all four fields through the composed runtime, document the package-level contract, and regenerate the config catalog from the owning interface.

docs/config-catalog.md

@@ -215,16 +215,24 @@ export interface Config {
   provider: string
   /** Model name for the configured agent; a matching adapter must be registered. */
   model: string
+  /** Bundled agent-loop concurrency cap; `1` is serial and omission uses its default. */
+  maxParallelToolCalls?: number
   /** Deployment persona forwarded to the system-prompt plugin. */
   persona?: string
   /** Explicit model-facing tool order forwarded to the system-prompt plugin. */
   toolOrder?: string[]
   /** Tool-registry presentation config forwarded through agent-spine-demo. */
   tools?: ToolsConfig
+  /** DeepSeek Harness home directory exposed to bash and used for local skill discovery. */
+  dshHome?: string
   /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */
   persistenceRoot?: string
   /** Skill registry, local-provider, and model-facing consumer config. */
   skills?: agentCore.SkillConfig
+  /** Model-facing bash tool config forwarded through agent-spine-demo. */
+  toolBash?: NonNullable<agentCore.Config['toolBash']>
+  /** Generic background-task control-tool config forwarded through agent-spine-demo. */
+  toolTasks?: NonNullable<agentCore.Config['toolTasks']>
   /** Controls automatic AGENTS.md/CLAUDE.md loading; configure a byte budget or set `false`. */
   workspaceContext: agentCore.Config['workspaceContext']
 }