feat(cli): mcpctl chat-llm + KIND/STATUS columns (v1 Stage 5)

Closes the loop on user-facing surface:

  $ mcpctl get llm
  NAME             KIND     STATUS    TYPE     MODEL                       TIER  KEY  ID
  qwen3-thinking   public   active    openai   qwen3-thinking              fast  ...  ...
  vllm-local       virtual  active    openai   Qwen/Qwen2.5-7B-Instruct    fast  -    ...

  $ mcpctl chat-llm vllm-local
  ────────────────────────────────────────
  LLM: vllm-local  openai → Qwen/Qwen2.5-7B-Instruct-AWQ
  Kind: virtual    Status: active
  ────────────────────────────────────────
  > hello?
  Hi! …

New: chat-llm command (commands/chat-llm.ts)
- Stateless chat with any mcpd-registered LLM. No threads, no tools,
  no project prompts. POSTs to /api/v1/llms/<name>/infer; mcpd's
  kind=virtual branch handles relay-through-mcplocal transparently,
  so the same CLI command works for both public and virtual LLMs.
- Reuses installStatusBar / formatStats / recordDelta / styleStats /
  PhaseStats from chat.ts (now exported) so the bottom-row tokens-per-
  second ticker behaves identically to mcpctl chat.
- Flags: --message (one-shot), --system, --temperature, --max-tokens,
  --no-stream. Streaming uses OpenAI chat.completion.chunk SSE.
- REPL mode keeps a per-session history array so multi-turn flows
  feel natural; each turn is an independent inference call.

Updated: get.ts
- LlmRow gains optional kind/status fields.
- llmColumns layout: NAME, KIND, STATUS, TYPE, MODEL, TIER, KEY, ID.
  Defaults gracefully when older mcpd responses don't return them.

Updated: chat.ts
- Re-exports the helpers chat-llm.ts needs (PhaseStats, newPhase,
  recordDelta, formatStats, styleStats, styleThinking, STDERR_IS_TTY,
  StatusBar, installStatusBar). No behavior change.

Completions: chat-llm picks up the standard option enumeration
automatically; bash gets a special-case for first-arg LLM-name
completion via _mcpctl_resource_names "llms".

CLI suite: 437/437 (was 430, +7 from auto-discovered test cases in
the regenerated completions golden). Workspace: 2043/2043 across
152 files.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

completions/mcpctl.fish

@@ -4,7 +4,7 @@
 # Erase any stale completions from previous versions
 complete -c mcpctl -e
 
-set -l commands status login logout config get describe delete logs create edit apply chat patch backup approve console cache test migrate rotate
+set -l commands status login logout config get describe delete logs create edit apply chat chat-llm patch backup approve console cache test migrate rotate
 set -l project_commands get describe delete logs create edit attach-server detach-server
 
 # Disable file completions by default
@@ -231,6 +231,7 @@ complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a edit -d 'Edit a resource in your default editor (server, project)'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a apply -d 'Apply declarative configuration from a YAML or JSON file'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a chat -d 'Open an interactive chat session with an agent (REPL or one-shot).'
+complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a chat-llm -d 'Stateless chat with any registered LLM (public or virtual). No threads, no tools.'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a patch -d 'Patch a resource field (e.g. mcpctl patch project myproj llmProvider=none)'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a backup -d 'Git-based backup status and management'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a approve -d 'Approve a pending prompt request (atomic: delete request, create prompt)'
@@ -518,6 +519,13 @@ complete -c mcpctl -n "__fish_seen_subcommand_from chat" -l allow-tool -d 'Restr
 complete -c mcpctl -n "__fish_seen_subcommand_from chat" -l extra -d 'Provider-specific knob k=v (repeatable)' -x
 complete -c mcpctl -n "__fish_seen_subcommand_from chat" -l no-stream -d 'Disable SSE streaming (single JSON response)'
 
+# chat-llm options
+complete -c mcpctl -n "__fish_seen_subcommand_from chat-llm" -s m -l message -d 'One-shot: send a single message and exit (no REPL)' -x
+complete -c mcpctl -n "__fish_seen_subcommand_from chat-llm" -l system -d 'Optional system prompt' -x
+complete -c mcpctl -n "__fish_seen_subcommand_from chat-llm" -l temperature -d 'Sampling temperature (0..2)' -x
+complete -c mcpctl -n "__fish_seen_subcommand_from chat-llm" -l max-tokens -d 'Maximum tokens in the assistant reply' -x
+complete -c mcpctl -n "__fish_seen_subcommand_from chat-llm" -l no-stream -d 'Disable SSE streaming (single JSON response)'
+
 # console options
 complete -c mcpctl -n "__fish_seen_subcommand_from console" -l stdin-mcp -d 'Run inspector as MCP server over stdin/stdout (for Claude)'
 complete -c mcpctl -n "__fish_seen_subcommand_from console" -l audit -d 'Browse audit events from mcpd'