fix(providers): remove non-OpenAI-compatible providers, fix review feedback

Address code review from gemini-code-assist:

- Remove 5 providers with incompatible APIs that would not work through
  OmniRoute's OpenAI-compatible proxy pipeline:
  - Replicate (uses /v1/predictions + version ID format)
  - fal.ai (custom model-specific endpoints)
  - Segmind (model-specific URLs, custom x-api-key auth)
  - Runware (task-based API)
  - WaveSpeed AI (task-based submit/get API)

- Keep 4 verified OpenAI-compatible providers:
  - Novita AI (confirmed OpenAI-compatible APIs)
  - PiAPI (LLM /v1/chat/completions confirmed)
  - GoAPI (explicitly implements OpenAI API spec)
  - LaoZhang AI (OpenAI-compatible proxy)

- Fix hardcoded "Peak cached:" label in CacheTrends → use t("peakCached")
- Add "peakCached" translation key to en.json

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/app/(dashboard)/dashboard/cache/components/CacheTrends.tsx

@@ -73,7 +73,7 @@ export default function CacheTrends({
         <>
           {maxCachedRequests > 0 && (
             <div className="text-xs text-text-muted">
-              Peak cached:{" "}
+              {t("peakCached")}:{" "}
               <span className="font-medium text-foreground">
                 {maxCachedRequests} / {maxRequests}
               </span>

src/i18n/messages/en.json

@@ -3068,6 +3068,7 @@
     "cachedTokensCol": "Cached",
     "cacheCreation": "Creation",
     "trend24h": "Cache Trend (24h)",
+    "peakCached": "Peak cached",
     "cached": "Cached",
     "overview": "Overview",
     "entries": "Entries",

src/shared/constants/providers.ts

@@ -597,26 +597,6 @@ export const APIKEY_PROVIDERS = {
       "$0.025/day free credits — 200+ models (GPT-4o, Claude, Gemini, Llama) via single endpoint",
     passthroughModels: true,
   },
-  replicate: {
-    id: "replicate",
-    alias: "rep",
-    name: "Replicate",
-    icon: "smart_toy",
-    color: "#3D65F5",
-    textIcon: "RP",
-    website: "https://replicate.com",
-    passthroughModels: true,
-  },
-  "fal-ai": {
-    id: "fal-ai",
-    alias: "fal",
-    name: "fal.ai",
-    icon: "bolt",
-    color: "#6D28D9",
-    textIcon: "FL",
-    website: "https://fal.ai",
-    passthroughModels: true,
-  },
   novita: {
     id: "novita",
     alias: "novita",
@@ -627,33 +607,6 @@ export const APIKEY_PROVIDERS = {
     website: "https://novita.ai",
     passthroughModels: true,
   },
-  segmind: {
-    id: "segmind",
-    alias: "seg",
-    name: "Segmind",
-    icon: "image",
-    color: "#00BFA5",
-    textIcon: "SG",
-    website: "https://cloud.segmind.com",
-  },
-  runware: {
-    id: "runware",
-    alias: "rw",
-    name: "Runware",
-    icon: "image",
-    color: "#2979FF",
-    textIcon: "RW",
-    website: "https://runware.ai",
-  },
-  wavespeed: {
-    id: "wavespeed",
-    alias: "ws",
-    name: "WaveSpeed AI",
-    icon: "speed",
-    color: "#00E5FF",
-    textIcon: "WS",
-    website: "https://wavespeed.ai",
-  },
   piapi: {
     id: "piapi",
     alias: "pi",