Add container registry pull, image source settings, and global AWS config

Support pulling images from registry (default: repo.anhonesthost.net/cybercovellc/triple-c/triple-c-sandbox:latest),
local builds, or custom images via a new settings UI. Add global AWS configuration
(config path auto-detect, profile picker, region) that serves as defaults overridable
per-project for Bedrock auth.

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

app/src/components/settings/AwsSettings.tsx

@@ -0,0 +1,109 @@
+import { useState, useEffect } from "react";
+import { useSettings } from "../../hooks/useSettings";
+import * as commands from "../../lib/tauri-commands";
+
+export default function AwsSettings() {
+  const { appSettings, saveSettings } = useSettings();
+  const [profiles, setProfiles] = useState<string[]>([]);
+  const [detecting, setDetecting] = useState(false);
+
+  const globalAws = appSettings?.global_aws ?? {
+    aws_config_path: null,
+    aws_profile: null,
+    aws_region: null,
+  };
+
+  // Load profiles when component mounts or aws_config_path changes
+  useEffect(() => {
+    commands.listAwsProfiles().then(setProfiles).catch(() => setProfiles([]));
+  }, [globalAws.aws_config_path]);
+
+  const handleDetect = async () => {
+    setDetecting(true);
+    try {
+      const path = await commands.detectAwsConfig();
+      if (path && appSettings) {
+        const updated = {
+          ...appSettings,
+          global_aws: { ...globalAws, aws_config_path: path },
+        };
+        await saveSettings(updated);
+        // Refresh profiles after detection
+        const p = await commands.listAwsProfiles();
+        setProfiles(p);
+      }
+    } finally {
+      setDetecting(false);
+    }
+  };
+
+  const handleChange = async (field: string, value: string | null) => {
+    if (!appSettings) return;
+    await saveSettings({
+      ...appSettings,
+      global_aws: { ...globalAws, [field]: value || null },
+    });
+  };
+
+  return (
+    <div>
+      <label className="block text-sm font-medium mb-2">AWS Configuration</label>
+      <div className="space-y-3 text-sm">
+        <p className="text-xs text-[var(--text-secondary)]">
+          Global AWS defaults for Bedrock projects. Per-project settings override these.
+        </p>
+
+        {/* AWS Config Path */}
+        <div>
+          <span className="text-[var(--text-secondary)] text-xs block mb-1">AWS Config Path</span>
+          <div className="flex gap-2">
+            <input
+              type="text"
+              value={globalAws.aws_config_path ?? ""}
+              onChange={(e) => handleChange("aws_config_path", e.target.value)}
+              placeholder="~/.aws"
+              className="flex-1 px-2 py-1.5 text-xs bg-[var(--bg-primary)] border border-[var(--border-color)] rounded focus:outline-none focus:border-[var(--accent)]"
+            />
+            <button
+              onClick={handleDetect}
+              disabled={detecting}
+              className="px-3 py-1.5 text-xs bg-[var(--bg-tertiary)] border border-[var(--border-color)] rounded hover:bg-[var(--border-color)] transition-colors"
+            >
+              {detecting ? "..." : "Detect"}
+            </button>
+          </div>
+          {globalAws.aws_config_path && (
+            <span className="text-xs text-[var(--success)] mt-0.5 block">Found</span>
+          )}
+        </div>
+
+        {/* AWS Profile */}
+        <div>
+          <span className="text-[var(--text-secondary)] text-xs block mb-1">Default Profile</span>
+          <select
+            value={globalAws.aws_profile ?? ""}
+            onChange={(e) => handleChange("aws_profile", e.target.value)}
+            className="w-full px-2 py-1.5 text-xs bg-[var(--bg-primary)] border border-[var(--border-color)] rounded focus:outline-none focus:border-[var(--accent)]"
+          >
+            <option value="">None (use default)</option>
+            {profiles.map((p) => (
+              <option key={p} value={p}>{p}</option>
+            ))}
+          </select>
+        </div>
+
+        {/* AWS Region */}
+        <div>
+          <span className="text-[var(--text-secondary)] text-xs block mb-1">Default Region</span>
+          <input
+            type="text"
+            value={globalAws.aws_region ?? ""}
+            onChange={(e) => handleChange("aws_region", e.target.value)}
+            placeholder="e.g., us-east-1"
+            className="w-full px-2 py-1.5 text-xs bg-[var(--bg-primary)] border border-[var(--border-color)] rounded focus:outline-none focus:border-[var(--accent)]"
+          />
+        </div>
+      </div>
+    </div>
+  );
+}