fix: remove make dependency from Dockerfiles

Inline go build/install commands directly instead of depending on
make/just inside the container.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: tac0turtle

apps/grpc/Dockerfile

@@ -2,7 +2,7 @@
 FROM golang:1.25-alpine AS builder
 
 #hadolint ignore=DL3018
-RUN apk add --no-cache git make gcc musl-dev linux-headers
+RUN apk add --no-cache git gcc musl-dev linux-headers
 
 # Set working directory
 WORKDIR /ev-node

apps/testapp/Dockerfile

@@ -21,7 +21,7 @@ WORKDIR /ev-node
 COPY . .
 
 # Now download dependencies and build
-RUN go mod download && make install
+RUN go mod download && cd apps/testapp && go install .
 
 ## prep the final image.
 #

tools/local-da/Dockerfile

@@ -3,16 +3,14 @@ FROM golang:1.25-alpine AS build-env
 WORKDIR /src
 
 #hadolint ignore=DL3018
-RUN apk add --no-cache make
-
 COPY core core
 
 COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
 
-RUN make build-da
+RUN mkdir -p build && cd tools/local-da && go build -o /src/build/local-da .
 
 FROM alpine:3.22.2