refactor(models): expand provider listings for robust fuzzy matching

Add alternative providers to free-tier and cross-provider models:
- k2p5: add friendli as alternative to kimi-for-coding
- kimi-k2.5-free, minimax-m2.5-free, big-pickle, gpt-5-nano: add opencode-zen-abuse
- grok-code-fast-1: add venice as alternative to github-copilot
- glm-5: add opencode as alternative to zai-coding-plan

src/cli/__snapshots__/model-fallback.test.ts.snap

@@ -83,7 +83,7 @@ exports[`generateModelConfig single native provider uses Claude models when only
       "variant": "max",
     },
     "multimodal-looker": {
-      "model": "anthropic/claude-haiku-4-5",
+      "model": "opencode/big-pickle",
     },
     "oracle": {
       "model": "anthropic/claude-opus-4-6",
@@ -145,7 +145,7 @@ exports[`generateModelConfig single native provider uses Claude models with isMa
       "variant": "max",
     },
     "multimodal-looker": {
-      "model": "anthropic/claude-haiku-4-5",
+      "model": "opencode/big-pickle",
     },
     "oracle": {
       "model": "anthropic/claude-opus-4-6",
@@ -325,7 +325,7 @@ exports[`generateModelConfig single native provider uses Gemini models when only
   "$schema": "https://raw.githubusercontent.com/code-yeongyu/oh-my-opencode/master/assets/oh-my-opencode.schema.json",
   "agents": {
     "atlas": {
-      "model": "google/gemini-3-pro",
+      "model": "opencode/big-pickle",
     },
     "explore": {
       "model": "opencode/gpt-5-nano",
@@ -386,7 +386,7 @@ exports[`generateModelConfig single native provider uses Gemini models with isMa
   "$schema": "https://raw.githubusercontent.com/code-yeongyu/oh-my-opencode/master/assets/oh-my-opencode.schema.json",
   "agents": {
     "atlas": {
-      "model": "google/gemini-3-pro",
+      "model": "opencode/big-pickle",
     },
     "explore": {
       "model": "opencode/gpt-5-nano",
@@ -617,7 +617,7 @@ exports[`generateModelConfig fallback providers uses OpenCode Zen models when on
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "opencode/gemini-3-flash",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "opencode/gpt-5.2",
@@ -691,7 +691,7 @@ exports[`generateModelConfig fallback providers uses OpenCode Zen models with is
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "opencode/gemini-3-flash",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "opencode/gpt-5.2",
@@ -1025,7 +1025,7 @@ exports[`generateModelConfig mixed provider scenarios uses Claude + OpenCode Zen
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "opencode/gemini-3-flash",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "opencode/gpt-5.2",
@@ -1300,7 +1300,7 @@ exports[`generateModelConfig mixed provider scenarios uses all fallback provider
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "github-copilot/gemini-3-flash-preview",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "github-copilot/gpt-5.2",
@@ -1374,7 +1374,7 @@ exports[`generateModelConfig mixed provider scenarios uses all providers togethe
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "google/gemini-3-flash",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "openai/gpt-5.2",
@@ -1448,7 +1448,7 @@ exports[`generateModelConfig mixed provider scenarios uses all providers with is
       "variant": "medium",
     },
     "multimodal-looker": {
-      "model": "google/gemini-3-flash",
+      "model": "opencode/kimi-k2.5-free",
     },
     "oracle": {
       "model": "openai/gpt-5.2",

src/shared/model-requirements.ts

@@ -16,10 +16,10 @@ export const AGENT_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
   sisyphus: {
     fallbackChain: [
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-opus-4-6", variant: "max" },
-      { providers: ["kimi-for-coding"], model: "k2p5" },
-      { providers: ["opencode"], model: "kimi-k2.5-free" },
-      { providers: ["zai-coding-plan"], model: "glm-5" },
-      { providers: ["opencode"], model: "big-pickle" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "kimi-k2.5-free" },
+      { providers: ["zai-coding-plan", "opencode"], model: "glm-5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "big-pickle" },
     ],
     requiresAnyModel: true,
   },
@@ -38,23 +38,23 @@ export const AGENT_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
   },
    librarian: {
      fallbackChain: [
-       { providers: ["opencode"], model: "minimax-m2.5-free" },
+       { providers: ["opencode", "opencode-zen-abuse"], model: "minimax-m2.5-free" },
        { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-flash" },
-       { providers: ["opencode"], model: "big-pickle" },
+       { providers: ["opencode", "opencode-zen-abuse"], model: "big-pickle" },
      ],
    },
   explore: {
     fallbackChain: [
-      { providers: ["github-copilot"], model: "grok-code-fast-1" },
-      { providers: ["opencode"], model: "minimax-m2.5-free" },
+      { providers: ["github-copilot", "venice"], model: "grok-code-fast-1" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "minimax-m2.5-free" },
       { providers: ["anthropic", "opencode"], model: "claude-haiku-4-5" },
-      { providers: ["opencode"], model: "gpt-5-nano" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "gpt-5-nano" },
     ],
   },
   "multimodal-looker": {
     fallbackChain: [
-      { providers: ["kimi-for-coding"], model: "k2p5" },
-      { providers: ["opencode"], model: "kimi-k2.5-free" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "kimi-k2.5-free" },
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-flash" },
       { providers: ["openai", "github-copilot", "opencode"], model: "gpt-5.2" },
       { providers: ["zai-coding-plan"], model: "glm-4.6v" },
@@ -64,16 +64,16 @@ export const AGENT_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
     fallbackChain: [
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-opus-4-6", variant: "max" },
       { providers: ["openai", "github-copilot", "opencode"], model: "gpt-5.2", variant: "high" },
-      { providers: ["kimi-for-coding"], model: "k2p5" },
-      { providers: ["opencode"], model: "kimi-k2.5-free" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "kimi-k2.5-free" },
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-pro" },
     ],
   },
   metis: {
     fallbackChain: [
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-opus-4-6", variant: "max" },
-      { providers: ["kimi-for-coding"], model: "k2p5" },
-      { providers: ["opencode"], model: "kimi-k2.5-free" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "kimi-k2.5-free" },
       { providers: ["openai", "github-copilot", "opencode"], model: "gpt-5.2", variant: "high" },
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-pro", variant: "high" },
     ],
@@ -87,8 +87,8 @@ export const AGENT_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
   },
   atlas: {
     fallbackChain: [
-      { providers: ["kimi-for-coding"], model: "k2p5" },
-      { providers: ["opencode"], model: "kimi-k2.5-free" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "kimi-k2.5-free" },
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-sonnet-4-6" },
       { providers: ["openai", "github-copilot", "opencode"], model: "gpt-5.2" },
     ],
@@ -99,9 +99,9 @@ export const CATEGORY_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
   "visual-engineering": {
     fallbackChain: [
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-pro", variant: "high" },
-      { providers: ["zai-coding-plan"], model: "glm-5" },
+      { providers: ["zai-coding-plan", "opencode"], model: "glm-5" },
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-opus-4-6", variant: "max" },
-      { providers: ["kimi-for-coding"], model: "k2p5" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
     ],
   },
   ultrabrain: {
@@ -131,7 +131,7 @@ export const CATEGORY_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
     fallbackChain: [
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-haiku-4-5" },
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-flash" },
-      { providers: ["opencode"], model: "gpt-5-nano" },
+      { providers: ["opencode", "opencode-zen-abuse"], model: "gpt-5-nano" },
     ],
   },
   "unspecified-low": {
@@ -150,7 +150,7 @@ export const CATEGORY_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
   },
   writing: {
     fallbackChain: [
-      { providers: ["kimi-for-coding"], model: "k2p5" },
+      { providers: ["kimi-for-coding", "friendli"], model: "k2p5" },
       { providers: ["google", "github-copilot", "opencode"], model: "gemini-3-flash" },
       { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-sonnet-4-6" },
     ],