🎨 Palette: Fix plan details alignment with emojis (#902)

* 🎨 Palette: Fix plan details alignment with emojis

* 🎨 Palette: Fix plan details alignment with emojis

Co-authored-by: abhimehro <84992105+abhimehro@users.noreply.github.com>

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: abhimehro

.jules/palette.md

@@ -59,3 +59,7 @@
 
 **Learning:** When displaying data tables or CLI interfaces that calculate widths for alignment (e.g., using `len()` for padding calculations), emojis and full-width characters cause misalignment because they occupy 2 columns in the terminal but count as 1 character in Python's `len()`.
 **Action:** Always use a custom display width calculation (like `unicodedata.east_asian_width` or `_display_len`) when calculating padding around strings that may contain emojis or full-width characters to ensure perfect alignment.
+
+## 2025-03-04 - CLI Table Alignment with Emojis
+**Learning:** Python's standard `len()` and f-string padding mechanisms fail to correctly align CLI tables when dealing with emojis and full-width characters. These characters typically take 2 terminal columns but count as 1 character in standard string length calculations, causing visual misalignment.
+**Action:** Use a custom display width calculation leveraging `unicodedata.east_asian_width` to manually calculate and apply padding lengths for strings containing emojis or CJK characters.

main.py

@@ -636,7 +636,7 @@ def print_plan_details(plan_entry: PlanEntry) -> None:
     # Calculate max width for alignment
     max_name_len = max(
         # Use the same default ("Unknown") as when printing, so alignment is accurate
-        (len(sanitize_for_log(f.get("name", "Unknown"))) for f in folders),
+        (_display_len(sanitize_for_log(f.get("name", "Unknown"))) for f in folders),
         default=0,
     )
     max_rules_len = max((len(f"{f.get('rules', 0):,}") for f in folders), default=0)
@@ -648,13 +648,15 @@ def print_plan_details(plan_entry: PlanEntry) -> None:
 
         action_text = _get_action_text(folder)
 
+        padded_name = _pad_string(name, max_name_len, "<")
+
         if USE_COLORS:
             print(
-                f"  • {Colors.BOLD}{name:<{max_name_len}}{Colors.ENDC} : {formatted_rules:>{max_rules_len}} {pluralize(rules_count, 'rule'):<5} {action_text}"
+                f"  • {Colors.BOLD}{padded_name}{Colors.ENDC} : {formatted_rules:>{max_rules_len}} {pluralize(rules_count, 'rule'):<5} {action_text}"
             )
         else:
             print(
-                f"  - {name:<{max_name_len}} : {formatted_rules:>{max_rules_len}} {pluralize(rules_count, 'rule'):<5} {action_text}"
+                f"  - {padded_name} : {formatted_rules:>{max_rules_len}} {pluralize(rules_count, 'rule'):<5} {action_text}"
             )
 
     print("")