style: apply gofmt

Estate-wide consolidation pass. golangci-lint v2 default set enables NO
formatter, so gofmt drift accumulated silently across the estate -- 8 repos
were carrying it, this one included. Same hole that let two files rot in
dma-cli until they were found by hand (dma-cli#12).

Mechanical and deterministic: `gofmt -w`, nothing hand-edited. Verified
before commit -- gofmt -l now reports 0, go build and go vet both pass.

Clears this repo to adopt the canonical .golangci.yml (infra
ci-templates/golangci.yml, infra#309 pattern) in a later wave.

internal/config/routing.go

@@ -9,14 +9,14 @@ import (
 // RoutingConfig holds the runtime configuration for the routing pod.
 // Separate from Config because the routing pod's surface differs from the supervisor's.
 type RoutingConfig struct {
-	Port               string  // ROUTING_PORT, default 3210
-	MCPAuthToken       string  // ROUTING_MCP_TOKEN, optional bearer token
-	LiteLLMBaseURL     string  // LITELLM_BASE_URL, default https://llm-api.d-ma.be
-	LiteLLMAPIKey      string  // LITELLM_API_KEY
-	BrainURL           string  // BRAIN_URL, default http://ingestion.supervisor:3300
-	BrainMCPToken      string  // BRAIN_MCP_TOKEN, bearer for the auth-gated ingestion /mcp (session_log)
-	FastModel          string  // HYPERGUILD_FAST_MODEL, default koala/qwen35-9b-fast
-	ThinkingModel      string  // HYPERGUILD_THINKING_MODEL, default iguana/gemma4-26b
+	Port           string // ROUTING_PORT, default 3210
+	MCPAuthToken   string // ROUTING_MCP_TOKEN, optional bearer token
+	LiteLLMBaseURL string // LITELLM_BASE_URL, default https://llm-api.d-ma.be
+	LiteLLMAPIKey  string // LITELLM_API_KEY
+	BrainURL       string // BRAIN_URL, default http://ingestion.supervisor:3300
+	BrainMCPToken  string // BRAIN_MCP_TOKEN, bearer for the auth-gated ingestion /mcp (session_log)
+	FastModel      string // HYPERGUILD_FAST_MODEL, default koala/qwen35-9b-fast
+	ThinkingModel  string // HYPERGUILD_THINKING_MODEL, default iguana/gemma4-26b
 	// RouteLocalFloor and RouteLocalCeil intentionally invert the usual
 	// floor < ceil mathematical convention: Floor (default 0.90) is the
 	// UPPER boundary — at/above it, always route local; Ceil (default 0.70)