fix(shell): allow default local API URL bootstrap

packages/api/README.md

@@ -38,9 +38,11 @@ glance and the CLI now distinguishes them in its error output:
   (`docker` group / rootless Docker / socket ownership). This is a host
   configuration problem, not a `docker-git` outage.
 - **Controller container not running / unreachable** – the API at
-  `DOCKER_GIT_API_URL` (default `http://127.0.0.1:3334`) does not answer.
-  Bring the controller up with `docker compose up -d --build` or point the
-  CLI at an existing controller via `DOCKER_GIT_API_URL`.
+  a custom `DOCKER_GIT_API_URL` does not answer. Bring the controller up
+  with `docker compose up -d --build` or point the CLI at an existing
+  controller via `DOCKER_GIT_API_URL`. The default local value
+  (`http://127.0.0.1:3334`, `http://localhost:3334`, or `http://[::1]:3334`)
+  does not block local Docker bootstrap.
 
 Diagnostic classification + remediation messages live in
 `packages/app/src/docker-git/controller-docker-diagnostics.ts` and are

packages/app/src/docker-git/browser-frontend.ts

@@ -13,7 +13,12 @@ import {
   shouldReuseBrowserFrontend
 } from "./browser-frontend-state.js"
 import { findReachableApiBaseUrl } from "./controller-health.js"
-import { resolveConfiguredApiBaseUrl, resolveExplicitApiBaseUrl } from "./controller-reachability.js"
+import {
+  resolveConfiguredApiBaseUrl,
+  resolveDefaultLocalApiBaseUrl,
+  resolveExplicitApiBaseUrl,
+  uniqueStrings
+} from "./controller-reachability.js"
 import { type ControllerRuntime, ensureControllerReady, resolveApiBaseUrl } from "./controller.js"
 import {
   runCommandCapture,
@@ -153,19 +158,19 @@ const readBrowserFrontendRuntimeState = (
 // QUOTE(ТЗ): "комментарии ребита надо было тоже поддержать"
 // REF: PR #344 E2E (Browser command) regression.
 // SOURCE: n/a
-// FORMAT THEOREM: explicit_api -> explicit_api; reachable(configured_api) -> configured_api; otherwise -> selected_api
+// FORMAT THEOREM: strict_explicit_api -> strict_explicit_api; reachable(local_api) -> local_api; otherwise -> selected_api
 // PURITY: SHELL
 // EFFECT: Effect<string, never, ControllerRuntime>
-// INVARIANT: explicit DOCKER_GIT_API_URL is never overridden by auto-discovery.
+// INVARIANT: strict explicit DOCKER_GIT_API_URL is never overridden by auto-discovery.
 // COMPLEXITY: O(1) probes/O(1) space.
 /**
  * Resolves the API URL used by the browser frontend proxy.
  *
- * @returns Effect with the explicit API URL, the reachable configured host URL, or the selected controller URL.
+ * @returns Effect with the strict explicit API URL, a reachable local host URL, or the selected controller URL.
  *
  * @pure false
  * @effect FetchHttpClient through controller health probing.
- * @invariant Explicit `DOCKER_GIT_API_URL` has precedence over all inferred endpoints.
+ * @invariant Strict explicit `DOCKER_GIT_API_URL` has precedence over all inferred endpoints.
  * @precondition `ensureControllerReady` has already completed for inferred endpoints.
  * @postcondition A configured host URL is used only after a successful health probe.
  * @complexity O(1) time and O(1) space for the bounded candidate set.
@@ -179,11 +184,15 @@ const resolveBrowserFrontendApiBaseUrl = (): Effect.Effect<string, never, Contro
   }
 
   const configuredApiBaseUrl = resolveConfiguredApiBaseUrl()
-  if (configuredApiBaseUrl === selectedApiBaseUrl) {
+  const candidateApiBaseUrls = uniqueStrings([
+    resolveDefaultLocalApiBaseUrl() ?? "",
+    configuredApiBaseUrl
+  ].filter((value) => value.length > 0))
+  if (candidateApiBaseUrls.includes(selectedApiBaseUrl)) {
     return Effect.succeed(selectedApiBaseUrl)
   }
 
-  return findReachableApiBaseUrl([configuredApiBaseUrl]).pipe(
+  return findReachableApiBaseUrl(candidateApiBaseUrls).pipe(
     Effect.match({
       onFailure: () => selectedApiBaseUrl,
       onSuccess: (apiBaseUrl) => apiBaseUrl

packages/app/src/docker-git/controller-health.ts

@@ -100,11 +100,13 @@ export const findReachableApiBaseUrl = (
 
 export const findReachableDirectHealthProbe = (options: {
   readonly explicitApiBaseUrl: string | undefined
+  readonly defaultLocalApiBaseUrl: string | undefined
   readonly cachedApiBaseUrl: string | undefined
 }): Effect.Effect<HealthProbeResult | null> =>
   findReachableHealthProbeOrNull(
     buildApiBaseUrlCandidates({
       explicitApiBaseUrl: options.explicitApiBaseUrl,
+      defaultLocalApiBaseUrl: options.defaultLocalApiBaseUrl,
       cachedApiBaseUrl: options.cachedApiBaseUrl,
       defaultApiBaseUrl: resolveConfiguredApiBaseUrl(),
       currentContainerNetworks: {},

packages/app/src/docker-git/controller-reachability.ts

@@ -5,6 +5,7 @@ export type DockerNetworkIps = Readonly<Record<string, string>>
 
 export type ApiBaseUrlCandidatesInput = {
   readonly explicitApiBaseUrl?: string | undefined
+  readonly defaultLocalApiBaseUrl?: string | undefined
   readonly cachedApiBaseUrl?: string | undefined
   readonly defaultApiBaseUrl: string
   readonly currentContainerNetworks: DockerNetworkIps
@@ -28,11 +29,69 @@ const normalizePort = (value: string | undefined): string => {
   return trimmed.length > 0 ? trimmed : defaultApiPort
 }
 
+const normalizeApiBaseUrl = (value: string | undefined): string | undefined => {
+  const trimmed = value?.trim()
+  return trimmed !== undefined && trimmed.length > 0 ? trimTrailingSlashes(trimmed) : undefined
+}
+
 export const resolveApiPort = (): string => normalizePort(process.env["DOCKER_GIT_API_PORT"])
 
+const defaultLocalHostnames = new Set(["127.0.0.1", "localhost", "[::1]"])
+
+const isRootApiUrlPath = (url: URL): boolean => url.pathname === "/" && url.search.length === 0 && url.hash.length === 0
+
+const isDefaultLocalApiUrlObject = (url: URL, port: string): boolean =>
+  url.protocol === "http:" &&
+  defaultLocalHostnames.has(url.hostname) &&
+  url.port === port &&
+  isRootApiUrlPath(url)
+
+// CHANGE: classify default localhost API URLs as non-strict bootstrap hints.
+// WHY: Windows shells can persist DOCKER_GIT_API_URL=http://127.0.0.1:3334, which should not block local controller startup.
+// QUOTE(ТЗ): "сделать из коробки что бы всё само работало"
+// REF: user-request-2026-05-29-default-local-api-url-bootstrap
+// SOURCE: n/a
+// FORMAT THEOREM: local_http(url, port) and empty(path, query, hash) -> default_local(url)
+// PURITY: CORE
+// EFFECT: n/a
+// INVARIANT: only localhost loopback HTTP URLs on the configured API port are default-local.
+// COMPLEXITY: O(n) where n = |value|.
+export const isDefaultLocalApiBaseUrl = (value: string, port = resolveApiPort()): boolean => {
+  const normalized = normalizeApiBaseUrl(value)
+  if (normalized === undefined || !URL.canParse(normalized)) {
+    return false
+  }
+  return isDefaultLocalApiUrlObject(new URL(normalized), port)
+}
+
+// CHANGE: preserve default-local DOCKER_GIT_API_URL as an endpoint candidate instead of a strict override.
+// WHY: a stale default localhost env var should still allow compose bootstrap when nothing is listening yet.
+// QUOTE(ТЗ): "fallback только для дефолтного localhost URL"
+// REF: user-request-2026-05-29-default-local-api-url-bootstrap
+// SOURCE: n/a
+// FORMAT THEOREM: default_local(env) -> env; otherwise -> undefined
+// PURITY: SHELL
+// EFFECT: reads process.env
+// INVARIANT: custom DOCKER_GIT_API_URL values are never returned here.
+// COMPLEXITY: O(n) where n = |DOCKER_GIT_API_URL|.
+export const resolveDefaultLocalApiBaseUrl = (): string | undefined => {
+  const explicit = normalizeApiBaseUrl(process.env["DOCKER_GIT_API_URL"])
+  return explicit !== undefined && isDefaultLocalApiBaseUrl(explicit) ? explicit : undefined
+}
+
+// CHANGE: treat only custom DOCKER_GIT_API_URL values as strict explicit controller endpoints.
+// WHY: custom remote backends should fail loudly when unreachable, while default localhost should bootstrap locally.
+// QUOTE(ТЗ): "кастомные URL остаются строгими"
+// REF: user-request-2026-05-29-default-local-api-url-bootstrap
+// SOURCE: n/a
+// FORMAT THEOREM: nonempty(env) and not default_local(env) -> env; otherwise -> undefined
+// PURITY: SHELL
+// EFFECT: reads process.env
+// INVARIANT: default-local URLs do not block local bootstrap.
+// COMPLEXITY: O(n) where n = |DOCKER_GIT_API_URL|.
 export const resolveExplicitApiBaseUrl = (): string | undefined => {
-  const explicit = process.env["DOCKER_GIT_API_URL"]?.trim()
-  return explicit !== undefined && explicit.length > 0 ? trimTrailingSlashes(explicit) : undefined
+  const explicit = normalizeApiBaseUrl(process.env["DOCKER_GIT_API_URL"])
+  return explicit !== undefined && !isDefaultLocalApiBaseUrl(explicit) ? explicit : undefined
 }
 
 export const resolveConfiguredApiBaseUrl = (): string => {
@@ -126,6 +185,7 @@ export const buildApiBaseUrlCandidates = ({
   controllerNetworks,
   currentContainerNetworks,
   defaultApiBaseUrl,
+  defaultLocalApiBaseUrl,
   explicitApiBaseUrl,
   port
 }: ApiBaseUrlCandidatesInput): ReadonlyArray<string> => {
@@ -150,6 +210,7 @@ export const buildApiBaseUrlCandidates = ({
 
   return uniqueStrings(
     [
+      defaultLocalApiBaseUrl ?? "",
       cachedApiBaseUrl ?? "",
       defaultApiBaseUrl,
       resolveControllerDnsApiBaseUrl(),

packages/app/src/docker-git/controller.ts

@@ -1,18 +1,7 @@
 import { Duration, Effect, pipe, Schedule } from "effect"
 
 import { resolveControllerComposeUpArgs, shouldBuildControllerImage } from "./controller-bootstrap-plan.js"
-import {
-  controllerContainerName,
-  controllerExists,
-  type ControllerRuntime,
-  ensureControllerReachabilityNetworks,
-  inspectContainerNetworks,
-  inspectControllerPublishedPorts,
-  inspectControllerRevision,
-  prepareLocalControllerRevision,
-  resolveCurrentContainerNetworks,
-  runCompose
-} from "./controller-docker.js"
+import * as ControllerDocker from "./controller-docker.js"
 import { findReachableApiBaseUrl, findReachableDirectHealthProbe } from "./controller-health.js"
 import { inspectControllerImageRevision } from "./controller-image-revision.js"
 import {
@@ -21,6 +10,7 @@ import {
   formatNetworkIps,
   resolveApiPort,
   resolveConfiguredApiBaseUrl,
+  resolveDefaultLocalApiBaseUrl,
   resolveExplicitApiBaseUrl,
   shouldRequireExplicitApiUrlForRemoteDocker,
   trimTrailingSlashes
@@ -43,6 +33,8 @@ const controllerBootstrapError = (message: string): ControllerBootstrapError =>
   message
 })
 
+type ControllerEffect<A> = Effect.Effect<A, ControllerBootstrapError, ControllerDocker.ControllerRuntime>
+
 const rememberSelectedApiBaseUrl = (value: string): void => {
   selectedApiBaseUrl = trimTrailingSlashes(value)
 }
@@ -54,9 +46,9 @@ const collectReachabilityDiagnostics = (
   candidateUrls: ReadonlyArray<string>,
   currentContainerNetworks: DockerNetworkIps,
   controllerNetworks: DockerNetworkIps
-): Effect.Effect<string, never, ControllerRuntime> =>
+): Effect.Effect<string, never, ControllerDocker.ControllerRuntime> =>
   Effect.gen(function*(_) {
-    const publishedPorts = yield* _(inspectControllerPublishedPorts())
+    const publishedPorts = yield* _(ControllerDocker.inspectControllerPublishedPorts())
 
     return [
       "Tried endpoints:",
@@ -71,7 +63,7 @@ const waitForReachableApiBaseUrl = (
   candidateUrls: ReadonlyArray<string>,
   currentContainerNetworks: DockerNetworkIps,
   controllerNetworks: DockerNetworkIps
-): Effect.Effect<string, ControllerBootstrapError, ControllerRuntime> =>
+): ControllerEffect<string> =>
   pipe(
     findReachableApiBaseUrl(candidateUrls),
     Effect.retry(
@@ -160,21 +152,19 @@ type ControllerBootstrapContext = {
   readonly initialControllerNetworks: DockerNetworkIps
 }
 
-const loadControllerBootstrapContext = (): Effect.Effect<
-  ControllerBootstrapContext,
-  ControllerBootstrapError,
-  ControllerRuntime
-> =>
+const loadControllerBootstrapContext = (): ControllerEffect<ControllerBootstrapContext> =>
   Effect.gen(function*(_) {
     yield* _(prepareControllerRuntimeEnv())
     yield* _(prepareControllerResourceLimitEnv())
     const explicitApiBaseUrl = resolveExplicitApiBaseUrl()
-    const localControllerRevision = yield* _(prepareLocalControllerRevision())
-    const currentControllerExists = yield* _(controllerExists())
-    const currentControllerRevision = yield* _(inspectControllerRevision())
+    const localControllerRevision = yield* _(ControllerDocker.prepareLocalControllerRevision())
+    const currentControllerExists = yield* _(ControllerDocker.controllerExists())
+    const currentControllerRevision = yield* _(ControllerDocker.inspectControllerRevision())
     const currentImageRevision = yield* _(inspectControllerImageRevision())
-    const currentContainerNetworks = yield* _(resolveCurrentContainerNetworks())
-    const initialControllerNetworks = yield* _(inspectContainerNetworks(controllerContainerName))
+    const currentContainerNetworks = yield* _(ControllerDocker.resolveCurrentContainerNetworks())
+    const initialControllerNetworks = yield* _(
+      ControllerDocker.inspectContainerNetworks(ControllerDocker.controllerContainerName)
+    )
     const forceRecreateForResourceLimits = shouldForceRecreateForControllerResourceLimits()
     const forceRecreateController = forceRecreateForResourceLimits ||
       shouldForceRecreateController(currentControllerExists, localControllerRevision, currentControllerRevision)
@@ -203,6 +193,7 @@ const buildBootstrapCandidateUrls = (
 ): ReadonlyArray<string> =>
   buildApiBaseUrlCandidates({
     explicitApiBaseUrl,
+    defaultLocalApiBaseUrl: resolveDefaultLocalApiBaseUrl(),
     cachedApiBaseUrl: selectedApiBaseUrl,
     defaultApiBaseUrl: resolveConfiguredApiBaseUrl(),
     currentContainerNetworks,
@@ -243,16 +234,18 @@ const logControllerStart = (
 
 const startAndRememberController = (
   context: ControllerBootstrapContext
-): Effect.Effect<void, ControllerBootstrapError, ControllerRuntime> =>
+): ControllerEffect<void> =>
   Effect.gen(function*(_) {
     if (context.forceRecreateController || context.buildController) {
       yield* _(logControllerStart(context))
     }
 
-    yield* _(runCompose(resolveControllerComposeUpArgs(context)))
-    yield* _(ensureControllerReachabilityNetworks(context.currentContainerNetworks))
+    yield* _(ControllerDocker.runCompose(resolveControllerComposeUpArgs(context)))
+    yield* _(ControllerDocker.ensureControllerReachabilityNetworks(context.currentContainerNetworks))
 
-    const controllerNetworks = yield* _(inspectContainerNetworks(controllerContainerName))
+    const controllerNetworks = yield* _(
+      ControllerDocker.inspectContainerNetworks(ControllerDocker.controllerContainerName)
+    )
     const candidateUrls = buildBootstrapCandidateUrls(
       context.explicitApiBaseUrl,
       context.currentContainerNetworks,
@@ -274,12 +267,17 @@ const startAndRememberController = (
 // EFFECT: Effect<void, ControllerBootstrapError, CommandExecutor>
 // INVARIANT: controller is reachable from the current runtime before any host API dispatch
 // COMPLEXITY: O(1) compose + O(k) health checks
-export const ensureControllerReady = (): Effect.Effect<void, ControllerBootstrapError, ControllerRuntime> =>
+export const ensureControllerReady = (): ControllerEffect<void> =>
   Effect.gen(function*(_) {
     const explicitApiBaseUrl = resolveExplicitApiBaseUrl()
+    const defaultLocalApiBaseUrl = resolveDefaultLocalApiBaseUrl()
     if (explicitApiBaseUrl !== undefined) {
       const reachableBeforeDocker = yield* _(
-        findReachableDirectHealthProbe({ explicitApiBaseUrl, cachedApiBaseUrl: selectedApiBaseUrl })
+        findReachableDirectHealthProbe({
+          cachedApiBaseUrl: selectedApiBaseUrl,
+          defaultLocalApiBaseUrl,
+          explicitApiBaseUrl
+        })
       )
       if (reachableBeforeDocker !== null) {
         rememberSelectedApiBaseUrl(reachableBeforeDocker.apiBaseUrl)
@@ -288,12 +286,13 @@ export const ensureControllerReady = (): Effect.Effect<void, ControllerBootstrap
       yield* _(failIfExplicitApiUrlIsUnreachable(explicitApiBaseUrl))
     }
 
-    const localControllerRevision = yield* _(prepareLocalControllerRevision())
+    const localControllerRevision = yield* _(ControllerDocker.prepareLocalControllerRevision())
     const forceRecreateForResourceLimits = shouldForceRecreateForControllerResourceLimits()
     const reachableBeforeDocker = yield* _(
       findReachableDirectHealthProbe({
-        explicitApiBaseUrl,
-        cachedApiBaseUrl: selectedApiBaseUrl
+        cachedApiBaseUrl: selectedApiBaseUrl,
+        defaultLocalApiBaseUrl,
+        explicitApiBaseUrl
       })
     )
     if (
@@ -314,7 +313,7 @@ export const ensureControllerReady = (): Effect.Effect<void, ControllerBootstrap
     yield* _(startAndRememberController(bootstrapContext))
   })
 
-export const restartController = (): Effect.Effect<void, ControllerBootstrapError, ControllerRuntime> =>
+export const restartController = (): ControllerEffect<void> =>
   Effect.gen(function*(_) {
     const explicitApiBaseUrl = resolveExplicitApiBaseUrl()
     if (explicitApiBaseUrl !== undefined) {