chore(flox): Suppress verbose upgrade check logging and cleanup old log files (#39682)

.envrc

@@ -1,6 +1,9 @@
 # Docker Compose project name - forces all containers to use "posthog" namespace
 export COMPOSE_PROJECT_NAME=posthog
 
+# Suppress verbose Flox logging only (not PostHog Rust services)
+export RUST_LOG="flox=error,flox_rust_sdk=error,flox_watchdog=error"
+
 if command -v flox >/dev/null 2>&1; then # Only activate flox if installed
     # Capture the directory user intended to work in before any Flox operations
     ORIGINAL_PWD="${PWD}"

.flox/env/manifest.toml

@@ -54,6 +54,7 @@ ffmpeg.pkg-path = "ffmpeg"
 DEBUG = "1"
 POSTHOG_SKIP_MIGRATION_CHECKS = "1"
 DIRENV_LOG_FORMAT = "" # Disable direnv activation logging (in case direnv is present)
+RUST_LOG = "flox=error,flox_rust_sdk=error,flox_watchdog=error" # Suppress Flox logs only (also set in .envrc for early activation)
 OPENSSL_ROOT_DIR = "$FLOX_ENV"
 OPENSSL_LIB_DIR = "$FLOX_ENV/lib"
 DOTENV_FILE = ".env"
@@ -84,6 +85,9 @@ if [[ -t 0 ]] && ! command -v direnv >/dev/null 2>&1 && [ ! -f "$FLOX_ENV_CACHE/
   echo
 fi
 
+# Clean up old Flox log files (older than 7 days)
+find "$FLOX_ENV_PROJECT/.flox/log" -name "*.log" -type f -mtime +7 -delete 2>/dev/null || true
+
 # Ensure Python virtual environment - Python version is defined in pyproject.toml
 uv sync