feat: syntax-highlighted bash commands + fix backfill missing tool calls (#1347)

Co-authored-by: Letta Code <noreply@letta.com>

src/cli/components/colors.ts

@@ -145,6 +145,42 @@ const _colors = {
     dot: brandColors.statusError, // Red dot in output
   },
 
+  // Shell command syntax highlighting
+  shellSyntaxDark: {
+    prompt: "#cba6f7",
+    text: "#cdd6f4",
+    comment: "#6c7086",
+    keyword: "#89b4fa",
+    string: "#a6e3a1",
+    number: "#fab387",
+    literal: "#fab387",
+    builtIn: "#f9e2af",
+    variable: "#f5c2e7",
+    title: "#94e2d5",
+    attr: "#74c7ec",
+    operator: "#bac2de",
+    punctuation: "#bac2de",
+    meta: "#f38ba8",
+    substitution: "#f5c2e7",
+  },
+  shellSyntaxLight: {
+    prompt: "#8839ef",
+    text: "#4c4f69",
+    comment: "#9ca0b0",
+    keyword: "#1e66f5",
+    string: "#40a02b",
+    number: "#fe640b",
+    literal: "#fe640b",
+    builtIn: "#df8e1d",
+    variable: "#ea76cb",
+    title: "#179299",
+    attr: "#209fb5",
+    operator: "#5c5f77",
+    punctuation: "#5c5f77",
+    meta: "#d20f39",
+    substitution: "#e64553",
+  },
+
   // Todo list
   todo: {
     completed: brandColors.primaryAccent, // Same blue as in-progress, with strikethrough
@@ -220,6 +256,12 @@ const _colors = {
 export const colors = {
   ..._colors,
 
+  get shellSyntax() {
+    return getTerminalTheme() === "light"
+      ? _colors.shellSyntaxLight
+      : _colors.shellSyntaxDark;
+  },
+
   // User messages (past prompts) - theme-aware background
   // Uses getter to read theme at render time (after async init)
   get userMessage() {