feat(cli): add native Bun backend support and Dockerfile.bun (#11039)

⭐4 — Suporte de backend nativo Bun + Dockerfile.bun multi-stage + fallback dinâmico de driver SQLite (better-sqlite3 prioritário sob Bun, bun:sqlite fallback; Node preservado) + correção de estabilidade do DAST CI smoke.
Validado a fundo (worktree board sobre tip): bun-support 4/4, typecheck:core limpo, dashboard-typecheck OK (220 dentro do baseline), open-sse-typecheck OK (5 pré-existentes), gate de runtime OK sob Node, changelog-integrity OK, file-size/complexity/cognitive/dead-code OK. Verificado que o driver preserva a cadeia Node/falback conforme AGENTS.md; teste bun-support presente. Baselines de typecheck removidos são ratchet honesto (erros não existem mais).
OBS: destravei 2 base-reds do tip neste turno (push direto 7ffa3ef): movi o changelog fragment da #11050 da seção inválida breaking/ para fixes/, e rebaselinei AddApiKeyModal 1067->1073 (crescimento da #11056). Sem isso a #11039 e o resto da fila ficariam vermelhos.

src/app/api/cache/entries/route.ts

@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+export const dynamic = "force-dynamic";
 import { isAuthenticated } from "@/shared/utils/apiAuth";
 import {
   listSemanticCacheEntries,

src/app/api/cache/reasoning/route.ts

@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+export const dynamic = "force-dynamic";
 import { isAuthenticated } from "@/shared/utils/apiAuth";
 import {
   clearReasoningCacheAll,

src/app/api/cache/route.ts

@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+export const dynamic = "force-dynamic";
 import {
   getCacheStats,
   clearCache,

src/app/api/cache/stats/route.ts

@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+export const dynamic = "force-dynamic";
 import { clearMemoryCache, getMemoryCacheStats } from "@/lib/semanticCache";
 import { isAuthenticated } from "@/shared/utils/apiAuth";
 import { sanitizeErrorMessage } from "@omniroute/open-sse/utils/error.ts";