chore(bash32): guard declare -A callers + route dream-cli validate through $BASH

Five scripts used declare -A (bash 4+ associative arrays) without the
safety net already present in dream-cli and lib/service-registry.sh:

- scripts/pre-download.sh (user-invoked per FAQ.md)
- scripts/dream-test-functional.sh (dev/test tool)
- scripts/validate-env.sh (invoked by dream config validate)
- lib/progress.sh (sourced by install-core.sh)
- installers/phases/03-features.sh (sourced by install-core.sh)

On macOS the system /bin/bash is 3.2.57 and declare -A fails with a
cryptic "invalid option" error. Pattern A guards (standalone scripts)
use bare exit 1; Pattern B guards (sourced libs) use
"return 1 2>/dev/null || exit 1", matching the accepted patterns in
dream-cli:8-14 and lib/service-registry.sh:18-24.

Also makes dream config validate functional on macOS by invoking the
sibling subprocesses through "$BASH", so the modern bash that dream-cli
is running under is inherited by validate-env.sh and validate-manifests.sh
rather than being re-resolved through their #!/bin/bash shebang.

Removes a dead "2>/dev/null || true" fallback on declare -A SERVICE_PORTS
in dream-test-functional.sh; surrounding set -e + the service-registry
guard already abort the script before that line under bash 3.2.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: yasinBursali

dream-server/dream-cli

@@ -1114,15 +1114,15 @@ cmd_config() {
         validate)
             cd "$INSTALL_DIR"
             if [[ -x "$INSTALL_DIR/scripts/validate-env.sh" ]]; then
-                "$INSTALL_DIR/scripts/validate-env.sh" "$INSTALL_DIR/.env" "$INSTALL_DIR/.env.schema.json"
+                "$BASH" "$INSTALL_DIR/scripts/validate-env.sh" "$INSTALL_DIR/.env" "$INSTALL_DIR/.env.schema.json"
             else
                 warn "validate-env.sh not found at $INSTALL_DIR/scripts/validate-env.sh"
                 warn "Make sure you're on a recent Dream Server release."
             fi
             echo ""
             if [[ -x "$INSTALL_DIR/scripts/validate-manifests.sh" ]]; then
                 log "Validating extension manifests and compatibility..."
-                if "$INSTALL_DIR/scripts/validate-manifests.sh"; then
+                if "$BASH" "$INSTALL_DIR/scripts/validate-manifests.sh"; then
                     success "Extension manifests validated"
                 else
                     warn "Extension manifest validation reported issues. See output above."

dream-server/installers/phases/03-features.sh

@@ -20,6 +20,14 @@
 #   Add new optional features to the Custom menu here.
 # ============================================================================
 
+# Require Bash 4+ (associative arrays used for GPU topology/link maps)
+if (( BASH_VERSINFO[0] < 4 )); then
+    echo "ERROR: $(basename "${BASH_SOURCE[0]}") requires Bash 4.0+ (current: $BASH_VERSION)" >&2
+    echo "  macOS ships Bash 3.2 due to licensing. Install a modern version:" >&2
+    echo "    brew install bash" >&2
+    return 1 2>/dev/null || exit 1
+fi
+
 dream_progress 18 "features" "Selecting features"
 if $INTERACTIVE && ! $DRY_RUN; then
     show_phase 2 6 "Feature Selection" "~1 minute"

dream-server/lib/progress.sh

@@ -2,6 +2,14 @@
 # Dream Server — Progress Bar Utilities
 # Sourced by install-core.sh for download/install progress display
 
+# Require Bash 4+ (associative array PHASE_ESTIMATES used for phase timing)
+if (( BASH_VERSINFO[0] < 4 )); then
+    echo "ERROR: $(basename "${BASH_SOURCE[0]}") requires Bash 4.0+ (current: $BASH_VERSION)" >&2
+    echo "  macOS ships Bash 3.2 due to licensing. Install a modern version:" >&2
+    echo "    brew install bash" >&2
+    return 1 2>/dev/null || exit 1
+fi
+
 # ═══════════════════════════════════════════════════════════════
 # PROGRESS BAR
 # ═══════════════════════════════════════════════════════════════

dream-server/scripts/dream-test-functional.sh

@@ -11,6 +11,14 @@
 # This complements dream-test.sh which checks service health.
 #=============================================================================
 
+# Require Bash 4+ (associative arrays used for service-port lookup)
+if (( BASH_VERSINFO[0] < 4 )); then
+    echo "ERROR: $(basename "$0") requires Bash 4.0+ (you have $BASH_VERSION)" >&2
+    echo "  macOS ships Bash 3.2 due to licensing. Install a modern version:" >&2
+    echo "    brew install bash" >&2
+    exit 1
+fi
+
 set -euo pipefail
 
 # Colors
@@ -31,7 +39,7 @@ if [[ -f "$_FT_DIR/lib/service-registry.sh" ]]; then
 fi
 
 # Ensure SERVICE_PORTS is declared even if service-registry.sh was not sourced
-declare -A SERVICE_PORTS 2>/dev/null || true
+declare -A SERVICE_PORTS
 
 # Service endpoints — resolved from registry
 LLM_URL="${LLM_URL:-http://localhost:${SERVICE_PORTS[llama-server]:-11434}}"

dream-server/scripts/pre-download.sh

@@ -17,6 +17,14 @@
 # Cache location: ~/.cache/huggingface/hub/
 #=============================================================================
 
+# Require Bash 4+ (associative arrays used for tier → model mapping)
+if (( BASH_VERSINFO[0] < 4 )); then
+    echo "ERROR: $(basename "$0") requires Bash 4.0+ (you have $BASH_VERSION)" >&2
+    echo "  macOS ships Bash 3.2 due to licensing. Install a modern version:" >&2
+    echo "    brew install bash" >&2
+    exit 1
+fi
+
 set -euo pipefail
 
 # Colors

dream-server/scripts/validate-env.sh

@@ -7,6 +7,14 @@
 #  - Validate required keys, unknown keys, types, enums, and numeric ranges
 #  - Fail deterministically with a single exit code for CI
 
+# Require Bash 4+ (associative arrays used for env key/value/line tracking)
+if (( BASH_VERSINFO[0] < 4 )); then
+    echo "ERROR: $(basename "$0") requires Bash 4.0+ (you have $BASH_VERSION)" >&2
+    echo "  macOS ships Bash 3.2 due to licensing. Install a modern version:" >&2
+    echo "    brew install bash" >&2
+    exit 1
+fi
+
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"