fix(09): revise 09-05 plan based on checker feedback

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/phases/09-md3-components/09-05-PLAN.md

@@ -2,7 +2,7 @@
 phase: 09-md3-components
 plan: 05
 type: execute
-wave: 1
+wave: 2
 depends_on: ["09-04"]
 files_modified:
   - src/components/ui/TextFieldMD3.tsx
@@ -19,6 +19,7 @@ must_haves:
     - "Hovering the tooltip info button reveals tooltip text without clicking"
     - "Clicking the tooltip info button pins it open; clicking again dismisses it"
     - "Tooltip icon appears beside the helpText below the field, not above the field"
+    - "Tooltip icon renders even when field has tooltipText but no helpText"
   artifacts:
     - path: "src/components/ui/TextFieldMD3.tsx"
       provides: "helpTextPrefix prop for rendering inline content left of helpText"
@@ -126,14 +127,16 @@ return (
    ```
    To:
    ```tsx
-   {helpText && !error && (
+   {(helpText || helpTextPrefix) && !error && (
      <div className="flex items-start gap-1">
        {helpTextPrefix}
-       <p className="text-xs text-on-surface-container/70">{helpText}</p>
+       {helpText && (
+         <p className="text-xs text-on-surface-container/70">{helpText}</p>
+       )}
      </div>
    )}
    ```
-   This renders optional inline content (the tooltip icon) to the left of helpText. When `helpTextPrefix` is undefined/null, the flex container still renders correctly with just the `<p>`.
+   IMPORTANT: The outer guard MUST be `(helpText || helpTextPrefix) && !error` — not just `helpText && !error`. This ensures the tooltip icon (passed as helpTextPrefix) still renders when a field has `tooltipText` but no `helpText`. The inner `helpText &&` guard prevents an empty `<p>` tag when helpText is absent.
 
 **FieldRenderer.tsx — Fix text-branch tooltip (lines 83-109):**
 
@@ -209,6 +212,7 @@ IMPORTANT: Preserve existing `aria-label` format exactly as `More info about ${f
   </verify>
   <done>
     - Tooltip icon renders inline to the left of helpText below the field (not above the field)
+    - Tooltip icon renders even when field has tooltipText but no helpText (guard is helpText || helpTextPrefix)
     - Hovering the tooltip icon shows tooltip text
     - Clicking the tooltip icon pins tooltip open; clicking again dismisses
     - Mouse-leaving the icon hides tooltip (unless pinned via click)
@@ -226,6 +230,7 @@ IMPORTANT: Preserve existing `aria-label` format exactly as `More info about ${f
     - Test: Clicking tooltip button pins tooltip open, mouseLeave does NOT hide it
     - Test: TextFieldMD3 renders helpTextPrefix inline with helpText when prop provided
     - Test: TextFieldMD3 renders helpText normally when helpTextPrefix is not provided
+    - Test: TextFieldMD3 renders helpTextPrefix alone when helpText is absent (tooltip-only field)
   </behavior>
   <action>
 **FieldRenderer.test.tsx — Add hover behavior tests:**
@@ -264,13 +269,18 @@ Add tests in existing file (or create new describe block):
 2. `'renders helpText without wrapper issues when helpTextPrefix is undefined'`:
    - Render TextFieldMD3 with `helpText="Some help"` and no helpTextPrefix
    - `expect(screen.getByText('Some help')).toBeDefined()`
+
+3. `'renders helpTextPrefix alone when helpText is absent'`:
+   - Render TextFieldMD3 with NO `helpText` and `helpTextPrefix={<span data-testid="prefix-only">icon</span>}`
+   - `expect(screen.getByTestId('prefix-only')).toBeDefined()`
+   - This verifies the `(helpText || helpTextPrefix) && !error` guard works correctly for tooltip-only fields
   </action>
   <verify>
     <automated>cd C:/Users/SebastienQUEROL/Documents/projets/Ready2Blob && npx vitest run src/components/ui/FieldRenderer.test.tsx src/components/ui/TextFieldMD3.test.tsx --reporter=verbose 2>&1 | tail -40</automated>
   </verify>
   <done>
     - All new tooltip hover tests pass (mouseEnter shows, mouseLeave hides, click pins, click again unpins)
-    - helpTextPrefix rendering test passes
+    - helpTextPrefix rendering test passes (with helpText, without helpText, and prefix-only)
     - All pre-existing FieldRenderer and TextFieldMD3 tests still pass
   </done>
 </task>
@@ -281,6 +291,7 @@ Add tests in existing file (or create new describe block):
 1. `npx vitest run --reporter=verbose` — all tests pass (179+ existing + new tooltip tests)
 2. Manual spot-check: tooltip icon appears beside helpText below field, not above field
 3. Hover behavior: mouseEnter shows tooltip, mouseLeave hides it, click pins it
+4. Edge case: field with tooltipText but no helpText still renders the tooltip icon
 </verification>
 
 <success_criteria>
@@ -288,6 +299,7 @@ Add tests in existing file (or create new describe block):
 - Zero test regressions
 - Both FieldRenderer (text-branch + select-branch) and PasswordField have hover support
 - TextFieldMD3 has helpTextPrefix prop for extensibility
+- Fields with tooltipText but no helpText still show the tooltip icon (guard is not helpText-only)
 </success_criteria>
 
 <output>