feat: v0.7.0 — registre de providers LLM : am providers list/show/add/remove/default, settings.providers + default_provider (closes #88)

src/help.rs

@@ -678,6 +678,33 @@ pub static HELP_SPECS: &[HelpSpec] = &[
             HelpExample { desc: "Use it at launch.", code: "start claude-code --env OPENAI_KEY=@secret" },
         ],
     },
+    HelpSpec {
+        name: "providers",
+        category: "Commands",
+        usage: "providers {flags} <list|show|add|remove|default>",
+        about: "Manage the LLM provider registry: base URLs, models, the default model and the default provider (issue #88). Tokens are never stored here — they live in the OS keyring (issue #89).",
+        search_terms: &["provider", "token", "registry", "llm", "model", "api"],
+        flags: &[
+            HelpFlag { short: "", long: "--base-url", value: "URL", desc: "Base URL of the provider API (add)" },
+            HelpFlag { short: "", long: "--model", value: "MODEL", desc: "Model used by default for this provider (add)" },
+            HelpFlag { short: "", long: "--models", value: "MODELS", desc: "Comma-separated model list (add)" },
+        ],
+        subcommands: &[
+            ("list", "List the registered providers (default starred)"),
+            ("show", "Show one provider in detail"),
+            ("add", "Register or update a provider"),
+            ("remove", "Remove a provider"),
+            ("default", "Set the default provider"),
+        ],
+        parameters: &[],
+        io: None,
+        examples: &[
+            HelpExample { desc: "List the providers.", code: "providers" },
+            HelpExample { desc: "Register DeepSeek.", code: "providers add deepseek --base-url https://api.deepseek.com --model deepseek-chat --models deepseek-chat,deepseek-reasoner" },
+            HelpExample { desc: "Make it the default.", code: "providers default deepseek" },
+            HelpExample { desc: "Machine-readable list.", code: "providers --json" },
+        ],
+    },
     HelpSpec {
         name: "history",
         category: "Commands",