use battlsnake cli from git repo and build client localy

.gitignore

@@ -7,5 +7,7 @@
 __pycache__/
 data/
 .env
+.tools/
+
 dbschema/migrations/
 *.jsonl

justfile

@@ -12,6 +12,9 @@ set dotenv-required := true
 # Use zsh
 set shell := ["bash", "-cu"]
 
+BATTLESNAKE_CLI_DIR := ".tools/battlesnake-cli"
+BATTLESNAKE_CLI_BIN := ".tools/battlesnake-cli/battlesnake"
+
 # ------------------------------------------------------------------------------
 #  Default
 # ------------------------------------------------------------------------------
@@ -28,23 +31,50 @@ default:
 run:
   "{{justfile_directory()}}/main.py"
 
+build-battlesnake-cli:
+  #!/usr/bin/env bash
+  set -euo pipefail
+
+  install_dir="{{justfile_directory()}}/{{BATTLESNAKE_CLI_DIR}}"
+  bin_path="{{justfile_directory()}}/{{BATTLESNAKE_CLI_BIN}}"
+  mkdir -p "$install_dir"
+
+  if [ ! -f "{{justfile_directory()}}/local-client/go.mod" ]; then
+    echo "Missing local-client source. Run: git submodule update --init --recursive"
+    exit 1
+  fi
+
+  (
+    cd "{{justfile_directory()}}/local-client"
+    go build -o "$bin_path" ./cli/battlesnake/main.go
+  )
+
+  "$bin_path" --help > /dev/null
+  echo "Built Battlesnake CLI at $bin_path"
+
+battlesnake-cli-version:
+  #!/usr/bin/env bash
+  set -euo pipefail
+
+  "{{justfile_directory()}}/{{BATTLESNAKE_CLI_BIN}}" --help
+
 # ------------------------------------------------------------------------------
 #  Testing helpers
 # ------------------------------------------------------------------------------
 
-test-constrictor:
+test-constrictor: build-battlesnake-cli
   #!/usr/bin/env bash
   set -euo pipefail
 
-  BATTLESNAKE_CLI=battlesnake_cli_1.2.3_Linux_x86_64/battlesnake
-  $BATTLESNAKE_CLI play -W 11 -H 11 --name 'Python Starter Project' --url http://localhost:8000 -g constrictor --browser --minimumFood 0
+  BATTLESNAKE_CLI="{{justfile_directory()}}/{{BATTLESNAKE_CLI_BIN}}"
+  "$BATTLESNAKE_CLI" play -W 11 -H 11 --name 'Python Starter Project' --url http://localhost:8000 -g constrictor --browser --minimumFood 0
 
-test-seed:
+test-seed: build-battlesnake-cli
   #!/usr/bin/env bash
   set -euo pipefail
 
-  BATTLESNAKE_CLI=battlesnake_cli_1.2.3_Linux_x86_64/battlesnake
-  $BATTLESNAKE_CLI play -W 11 -H 11 --name 'Python Starter Project' --url http://localhost:8000 -g solo --browser --seed 1713099635738952360
+  BATTLESNAKE_CLI="{{justfile_directory()}}/{{BATTLESNAKE_CLI_BIN}}"
+  "$BATTLESNAKE_CLI" play -W 11 -H 11 --name 'Python Starter Project' --url http://localhost:8000 -g solo --browser --seed 1713099635738952360
 
 # ------------------------------------------------------------------------------
 #  Fataset helpers