diff --git a/.changeset/fix-gridland-react-singleton.md b/.changeset/fix-gridland-react-singleton.md
new file mode 100644
index 00000000..9e75c36d
--- /dev/null
+++ b/.changeset/fix-gridland-react-singleton.md
@@ -0,0 +1,5 @@
+---
+"@prover-coder-ai/docker-git": patch
+---
+
+Pin React and React DOM to the Gridland renderer-compatible 19.2.4 release so the CLI menu keeps a single valid React hook dispatcher.
diff --git a/bun.lock b/bun.lock
index 8fad0eec..a6bccdd7 100644
--- a/bun.lock
+++ b/bun.lock
@@ -41,7 +41,7 @@
     },
     "packages/app": {
       "name": "@prover-coder-ai/docker-git",
-      "version": "1.1.50",
+      "version": "1.1.54",
       "bin": {
         "docker-git": "dist/src/docker-git/main.js",
       },
@@ -62,8 +62,8 @@
         "@gridland/web": "0.4.3",
         "@prover-coder-ai/docker-git-session-sync": "workspace:*",
         "effect": "^3.21.2",
-        "react": "^19.2.7",
-        "react-dom": "^19.2.7",
+        "react": "19.2.4",
+        "react-dom": "19.2.4",
         "react-reconciler": "^0.33.0",
         "ts-morph": "^28.0.0",
       },
@@ -110,7 +110,7 @@
     },
     "packages/docker-git-session-sync": {
       "name": "@prover-coder-ai/docker-git-session-sync",
-      "version": "1.0.53",
+      "version": "1.0.57",
       "bin": {
         "docker-git-session-sync": "dist/docker-git-session-sync.js",
       },
@@ -184,7 +184,7 @@
         "@effect/platform-node": "^0.107.0",
         "@effect/schema": "^0.75.5",
         "effect": "^3.21.2",
-        "react": "^19.2.7",
+        "react": "19.2.4",
         "xterm": "^5.3.0",
         "xterm-addon-fit": "^0.8.0",
       },
@@ -217,7 +217,7 @@
         "fast-check": "^4.8.0",
         "globals": "^17.6.0",
         "jscpd": "^4.2.4",
-        "react-dom": "^19.2.7",
+        "react-dom": "19.2.4",
         "typescript": "^6.0.3",
         "typescript-eslint": "^8.60.1",
         "vite": "^8.0.16",
@@ -233,7 +233,8 @@
     "@parcel/watcher",
   ],
   "overrides": {
-    "react": "19.2.7",
+    "react": "19.2.4",
+    "react-dom": "19.2.4",
   },
   "packages": {
     "@babel/code-frame": ["@babel/code-frame@7.27.1", "", { "dependencies": { "@babel/helper-validator-identifier": "7.28.5", "js-tokens": "4.0.0", "picocolors": "1.1.1" } }, "sha512-cjQ7ZlQ0Mv3b47hABuTevyTuYN4i+loJKGeV9flcCgIK37cCXRh+L1bd3iBHlynerhQ7BhCkn2BPbQUL+rGqFg=="],
@@ -1566,9 +1567,9 @@
 
     "rdf-canonize": ["rdf-canonize@5.0.0", "", { "dependencies": { "setimmediate": "^1.0.5" } }, "sha512-g8OUrgMXAR9ys/ZuJVfBr05sPPoMA7nHIVs8VEvg9QwM5W4GR2qSFEEHjsyHF1eWlBaf8Ev40WNjQFQ+nJTO3w=="],
 
-    "react": ["react@19.2.7", "", {}, "sha512-HNe9WslTbXmFK8o8cmwgAeJFSBvt1bPdHCVKtaaV+WlAN36mpT4hcRpwbf3fY56ar2oIXzsBpOAiIRHAdY0OlQ=="],
+    "react": ["react@19.2.4", "", {}, "sha512-9nfp2hYpCwOjAN+8TZFGhtWEwgvWHXqESH8qT89AT/lWklpLON22Lc8pEtnpsZz7VmawabSU0gCjnj8aC0euHQ=="],
 
-    "react-dom": ["react-dom@19.2.7", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.7" } }, "sha512-t0BRVXvbiE/o20Hfw669rLbMCDWtYZLvmJigy2f0MxsXF+71pxhR3xOkspmsO8h3ZlNzyibAmtCa3l4lYKk6gQ=="],
+    "react-dom": ["react-dom@19.2.4", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.4" } }, "sha512-AXJdLo8kgMbimY95O2aKQqsz2iWi9jMgKJhRBAxECE4IFxfcazB2LmzloIoibJI3C12IlY20+KFaLv+71bUJeQ=="],
 
     "react-is": ["react-is@18.3.1", "", {}, "sha512-/LLMVyas0ljjAtoYiPqYiL8VWXzUUdThrmU5+n20DZv+a+ClRoevUzw5JxU+Ieh5/c87ytoTBV9G1FiKfNJdmg=="],
 
diff --git a/package.json b/package.json
index b75a268f..e4fbdf45 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,8 @@
     "unrs-resolver"
   ],
   "overrides": {
-    "react": "19.2.7"
+    "react": "19.2.4",
+    "react-dom": "19.2.4"
   },
   "repository": {
     "type": "git",
diff --git a/packages/api/Dockerfile b/packages/api/Dockerfile
index 726a05ab..3a96ca24 100644
--- a/packages/api/Dockerfile
+++ b/packages/api/Dockerfile
@@ -46,11 +46,32 @@ RUN set -eu; \
  && nvidia-ctk runtime configure --runtime=docker \
  && rm -rf /var/lib/apt/lists/*
 
-RUN curl -fsSL https://deb.nodesource.com/setup_24.x | bash - \
- && apt-get install -y --no-install-recommends nodejs \
- && curl -fsSL https://bun.sh/install | bash \
- && npm i -g node-gyp \
- && rm -rf /var/lib/apt/lists/*
+RUN set -eu; \
+    installed=0; \
+    for attempt in 1 2 3 4 5; do \
+      rm -rf /var/lib/apt/lists/* /opt/bun; \
+      if curl -fsSL --retry 5 --retry-all-errors --retry-delay 2 https://deb.nodesource.com/setup_24.x -o /tmp/nodesource-setup.sh \
+        && bash /tmp/nodesource-setup.sh \
+        && apt-get -o Acquire::Retries=3 install -y --no-install-recommends nodejs \
+        && npm install -g --prefix /opt/bun --no-audit --no-fund bun@1.3.11 node-gyp \
+        && node -v \
+        && npm -v \
+        && bun --version \
+        && test "$(bun --version)" = "1.3.11" \
+        && node-gyp --version; then \
+        installed=1; \
+        break; \
+      fi; \
+      echo "controller tooling install attempt ${attempt} failed; retrying..." >&2; \
+      rm -f /tmp/nodesource-setup.sh; \
+      sleep $((attempt * 2)); \
+    done; \
+    if [ "$installed" != "1" ]; then \
+      echo "controller tooling install failed after retries" >&2; \
+      exit 1; \
+    fi; \
+    rm -f /tmp/nodesource-setup.sh; \
+    rm -rf /var/lib/apt/lists/*
 
 FROM controller-base AS workspace-deps
 
diff --git a/packages/app/package.json b/packages/app/package.json
index 7da1314a..4c6ec213 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -80,8 +80,8 @@
     "@gridland/bun": "0.4.3",
     "@gridland/web": "0.4.3",
     "effect": "^3.21.2",
-    "react": "^19.2.7",
-    "react-dom": "^19.2.7",
+    "react": "19.2.4",
+    "react-dom": "19.2.4",
     "react-reconciler": "^0.33.0",
     "ts-morph": "^28.0.0"
   },
diff --git a/packages/app/tests/docker-git/controller-resource-limits.test.ts b/packages/app/tests/docker-git/controller-resource-limits.test.ts
index 9b03314a..400198fc 100644
--- a/packages/app/tests/docker-git/controller-resource-limits.test.ts
+++ b/packages/app/tests/docker-git/controller-resource-limits.test.ts
@@ -108,6 +108,34 @@ describe("API Dockerfile Electron materialization", () => {
     }))
 })
 
+describe("API Dockerfile controller tooling install", () => {
+  it.effect("retries network-bound controller tooling downloads", () =>
+    Effect.gen(function*(_) {
+      const contents = yield* _(readComposeFile("packages/api/Dockerfile"))
+      expect(contents).toContain("https://deb.nodesource.com/setup_24.x -o /tmp/nodesource-setup.sh")
+      expect(contents).toContain("npm install -g --prefix /opt/bun --no-audit --no-fund bun@1.3.11 node-gyp")
+      expect(contents).toContain("curl -fsSL --retry 5 --retry-all-errors --retry-delay 2")
+      expect(contents).toContain("controller tooling install failed after retries")
+      expect(contents).toContain("test \"$(bun --version)\" = \"1.3.11\"")
+      expect(contents).toContain("node-gyp --version")
+    }))
+})
+
+describe("OpenCode E2E auth bootstrap", () => {
+  it.effect("retries controller auth commands before the clone scenario", () =>
+    Effect.gen(function*(_) {
+      const contents = yield* _(readComposeFile("scripts/e2e/opencode-autoconnect.sh"))
+      expect(contents).toContain("auth_attempts=3")
+      expect(contents).toContain(": > \"$AUTH_LOG\"")
+      expect(contents).toContain("if (")
+      expect(contents).toContain("dg_run_docker_git \"$REPO_ROOT\" auth codex import")
+      expect(contents).toContain("dg_run_docker_git \"$REPO_ROOT\" auth codex status")
+      expect(contents).toContain(") >>\"$AUTH_LOG\" 2>&1")
+      expect(contents).toContain("auth bootstrap attempt $auth_attempt/$auth_attempts failed")
+      expect(contents).toContain("docker-git auth bootstrap failed after $auth_attempts attempts")
+    }))
+})
+
 describe("controller resource limit resolution", () => {
   it.effect("resolves CPU and RAM defaults to 90% of host resources", () =>
     Effect.sync(() => {
diff --git a/packages/app/tests/docker-git/gridland-react-singleton.test.ts b/packages/app/tests/docker-git/gridland-react-singleton.test.ts
index 076fa822..2532729a 100644
--- a/packages/app/tests/docker-git/gridland-react-singleton.test.ts
+++ b/packages/app/tests/docker-git/gridland-react-singleton.test.ts
@@ -2,11 +2,31 @@ import { describe, expect, it } from "@effect/vitest"
 import { Effect } from "effect"
 
 import rootPackage from "../../../../package.json" with { type: "json" }
+import terminalPackage from "../../../terminal/package.json" with { type: "json" }
 import appPackage from "../../package.json" with { type: "json" }
 
+// CHANGE: encode the React version resolved for the Gridland Bun renderer.
+// WHY: @gridland/bun embeds react-reconciler@0.33.0; Bun resolves that renderer contract to React 19.2.4.
+// QUOTE(ISSUE): "TypeError: null is not an object (evaluating 'resolveDispatcher().useCallback')"
+// REF: issue-385
+// SOURCE: n/a
+// FORMAT THEOREM: workspaceReactVersion = rendererReactVersion -> dispatcher(hookCall) != null
+// PURITY: CORE
+// EFFECT: n/a
+// INVARIANT: every workspace React entry resolves to the renderer-compatible singleton version.
+// COMPLEXITY: O(1)
+const gridlandRendererReactVersion = "19.2.4"
+
+const stripCaret = (value: string): string => value.replace(/^\^/u, "")
+
 describe("Gridland React singleton contract", () => {
   it.effect("pins React across workspace dependencies for the Gridland renderer", () =>
     Effect.sync(() => {
-      expect(rootPackage.overrides.react).toBe(appPackage.dependencies.react.replace(/^\^/u, ""))
+      expect(rootPackage.overrides.react).toBe(gridlandRendererReactVersion)
+      expect(rootPackage.overrides["react-dom"]).toBe(gridlandRendererReactVersion)
+      expect(stripCaret(appPackage.dependencies.react)).toBe(gridlandRendererReactVersion)
+      expect(stripCaret(appPackage.dependencies["react-dom"])).toBe(gridlandRendererReactVersion)
+      expect(stripCaret(terminalPackage.dependencies.react)).toBe(gridlandRendererReactVersion)
+      expect(stripCaret(terminalPackage.devDependencies["react-dom"])).toBe(gridlandRendererReactVersion)
     }))
 })
diff --git a/packages/terminal/package.json b/packages/terminal/package.json
index 3840bd72..3860b46a 100644
--- a/packages/terminal/package.json
+++ b/packages/terminal/package.json
@@ -22,7 +22,7 @@
     "@effect/platform-node": "^0.107.0",
     "@effect/schema": "^0.75.5",
     "effect": "^3.21.2",
-    "react": "^19.2.7",
+    "react": "19.2.4",
     "xterm": "^5.3.0",
     "xterm-addon-fit": "^0.8.0"
   },
@@ -55,7 +55,7 @@
     "fast-check": "^4.8.0",
     "globals": "^17.6.0",
     "jscpd": "^4.2.4",
-    "react-dom": "^19.2.7",
+    "react-dom": "19.2.4",
     "typescript": "^6.0.3",
     "typescript-eslint": "^8.60.1",
     "vite": "^8.0.16",
diff --git a/scripts/e2e/opencode-autoconnect.sh b/scripts/e2e/opencode-autoconnect.sh
index c2b4e103..f8127b23 100755
--- a/scripts/e2e/opencode-autoconnect.sh
+++ b/scripts/e2e/opencode-autoconnect.sh
@@ -124,11 +124,26 @@ OPENCODE_AUTO_CONNECT=1
 EOF_ENV
 
 AUTH_LOG="$ROOT/codex-auth.log"
-(
-  cd "$REPO_ROOT"
-  dg_run_docker_git "$REPO_ROOT" auth codex import --codex-auth "$ROOT/.orch/auth/codex"
-  dg_run_docker_git "$REPO_ROOT" auth codex status --codex-auth "$ROOT/.orch/auth/codex"
-) >"$AUTH_LOG" 2>&1
+auth_attempts=3
+auth_attempt=1
+auth_exit=0
+: > "$AUTH_LOG"
+while [[ "$auth_attempt" -le "$auth_attempts" ]]; do
+  if (
+    cd "$REPO_ROOT"
+    dg_run_docker_git "$REPO_ROOT" auth codex import --codex-auth "$ROOT/.orch/auth/codex"
+    dg_run_docker_git "$REPO_ROOT" auth codex status --codex-auth "$ROOT/.orch/auth/codex"
+  ) >>"$AUTH_LOG" 2>&1; then
+    auth_exit=0
+    break
+  else
+    auth_exit=$?
+  fi
+  echo "e2e/opencode-autoconnect: auth bootstrap attempt $auth_attempt/$auth_attempts failed (exit: $auth_exit); retrying..." >&2
+  auth_attempt="$((auth_attempt + 1))"
+  sleep 2
+done
+[[ "$auth_exit" -eq 0 ]] || fail "docker-git auth bootstrap failed after $auth_attempts attempts (last exit: $auth_exit)"
 
 auth_confirmation_count="$(grep -Fc -- "Codex auth imported into controller state (account: ci@example.com)." "$AUTH_LOG" || true)"
 [[ "$auth_confirmation_count" -ge 2 ]] \