feat: add DeepSeek and NVIDIA NIM providers

- Add deepseek and nvidia entries to gateway-provider config

- Add DEEPSEEK_API_KEY and NVIDIA_API_KEY to .env.example

- Add deepseek and nvidia to doctor's LLM provider check

- Fix remaining harness-log → log-message reference

org/gateway-cli.org

@@ -0,0 +1,26 @@
+#+TITLE: SKILL: CLI Gateway (org-skill-cli-gateway.org)
+#+AUTHOR: Agent
+#+FILETAGS: :skill:gateway:cli:
+#+PROPERTY: header-args:lisp :tangle ../lisp/gateway-cli.lisp
+
+* Overview
+The CLI Gateway is the simplest interface to Passepartout — raw stdin/stdout over TCP. It connects to the daemon's framed protocol and translates between terminal input/output and the plist-based communication format. No TUI, no ncurses, no dependencies beyond a TCP socket. Every other gateway (TUI, Emacs, Telegram) builds on this same protocol.
+
+* Implementation
+
+** CLI Command Handling
+#+begin_src lisp
+(defun gateway-cli-input (text)
+  "Processes raw text from the command line."
+  (inject-stimulus (list :type :EVENT 
+                         :payload (list :sensor :user-input :text text) 
+                         :meta (list :source :CLI))))
+#+end_src
+
+** Skill Registration
+#+begin_src lisp
+(defskill :passepartout-gateway-cli
+  :priority 100
+  :trigger (lambda (ctx) (eq (getf (getf ctx :meta) :source) :CLI))
+  :deterministic (lambda (action ctx) (declare (ignore ctx)) action))
+#+end_src