feat(2.0): Phase 1 — Engine + Routing (Herzstueck)

Backend-Services: fit/caps/sources (portiert), discover (live HF + Fit +
Caps + ranked recommendation), llama-swap write/register + groups (Ko-
Residenz swap:false), LiteLLM-Gateway-Config + gateway-Service (model:auto +
Fallbacks). Router: discover/fit/register/groups/routing; health zeigt
gateway_reachable. Frontend: Modelle&Routing mit Caps-Chips, Fit-Badges,
Discover-Tab (live), Routing-View.

Lokal verifiziert: Backend-Smoke (alle Endpunkte) + Frontend-Build +
Browser (Shell, Discover, Caps/Fit). Box-Verifikation offen.

Docs: README + docs/STATUS.md (Phasen-Tracker + Resume-Guide).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/lib/api.ts

@@ -9,6 +9,26 @@ export async function api<T = unknown>(path: string, init?: RequestInit): Promis
   return res.json() as Promise<T>
 }
 
+export interface Capabilities {
+  moe: boolean
+  active_b: number | null
+  tools: "yes" | "likely" | "no"
+  vision: boolean
+  coder: boolean
+  reasoning: boolean
+  embedding: boolean
+  ctx: number | null
+  params_b: number | null
+  arch: string | null
+}
+
+export interface Fit {
+  level: "perfect" | "marginal" | "too_tight"
+  text: string
+  req_gb: number
+  tps: number
+}
+
 export interface ModelInfo {
   name: string
   role: string | null
@@ -17,14 +37,52 @@ export interface ModelInfo {
   ctx: number | null
   ttl: number | null
   cmd: string
+  gguf_path: string
   filename: string
   quant: string
   size_bytes: number | null
   incomplete: boolean
+  capabilities: Capabilities
+}
+
+export interface DiscoverModel {
+  name: string
+  author: string
+  repo: string
+  role: string
+  params_b: number
+  quant: string
+  tags: string[]
+  downloads: number
+  fit: Fit
+  optimal_ctx: number
+  caps: Capabilities
+}
+
+export interface DiscoverCategory {
+  role: string
+  title: string
+  icon: string
+  models: DiscoverModel[]
+  recommended: string | null
+}
+
+export interface DiscoverResp {
+  updated: number
+  categories: DiscoverCategory[]
+  sys_ram_gb: number
+}
+
+export interface RoutingResp {
+  routes: { name: string; target: string; api_base: string | null }[]
+  fallbacks: Record<string, string[]>[]
+  context_window_fallbacks: Record<string, string[]>[]
+  gateway_reachable: boolean
 }
 
 export interface Health {
   status: string
   version: string
   engine_reachable: boolean
+  gateway_reachable: boolean
 }