fix(consult): blank-line paragraphs, drop the H2 contract line, remove the assistant avatar

Acceptance fix for 28113fa0 (TASK-consult-conversational-answer-fix-20261006):
- F1: chat-answer-detail no longer pins 'Every H2 must start its own line'
  (first turns carry no H2), assertion change noted in three columns.
- F2: Good examples separate paragraphs with a blank line and the shape says
  so; .message p is pre-wrap, so a single newline only wraps.
- Product request: remove the assistant avatar on every surface (consult,
  rectification, onboarding); --assistant-content-inset back to 0px.

Full suite 4941 / fail 24, identical to baseline 86cafe68 minus a timing flake;
build keeps / Static; first-load gzip -0.1%.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

frontend/src/app/globals.css

@@ -483,7 +483,7 @@ section[popover]:has(> [data-sonner-toaster]), section[popover][aria-label^="页
 .birth-time-assessment-progress strong { margin-top: var(--space-2); color: var(--color-ink); font-family: var(--font-display); font-size: var(--type-title-md); font-weight: 500; }
 .birth-time-assessment-progress > span { font-size: var(--type-body-sm); line-height: 1.55; text-wrap: pretty; word-break: auto-phrase; }
 
-.message-assistant { align-items: flex-start; justify-content: flex-start; gap: var(--space-3); }
+.message-assistant { align-items: flex-start; justify-content: flex-start; }
 .message-user { justify-content: flex-end; }
 .message-user .message-content { display: flex; flex-direction: column; align-items: flex-end; }
 .message-assistant .message-content { width: auto; max-width: none; flex: 1; }
@@ -1243,9 +1243,10 @@ section[popover]:has(> [data-sonner-toaster]), section[popover][aria-label^="页
 
 
 .message-list {
-  /* Follow-up chips and the run timeline line up with the assistant's text,
-     which starts past the avatar and its gap. */
-  --assistant-content-inset: calc(32px + var(--space-3));
+  /* The assistant reply starts at the column edge (no avatar since
+     2026-10-06), so follow-up chips and the run timeline line up with the
+     text itself. */
+  --assistant-content-inset: 0px;
   margin: 0 auto;
   width: min(900px, 100%);
   padding: var(--space-8) var(--space-8) var(--space-16);
@@ -1258,8 +1259,6 @@ section[popover]:has(> [data-sonner-toaster]), section[popover][aria-label^="页
   color: var(--color-ink-secondary);
 }
 .message { display: flex; padding: var(--space-2) 0; }
-/* Restored after real-device review; see chat-message-row.tsx for why. */
-.agent-avatar { width: 32px; height: 32px; display: block; flex: 0 0 32px; margin-top: var(--space-2); border-radius: 50%; background: var(--color-canvas) url("/jyotish-logo.png") center / contain no-repeat; box-shadow: 0 0 0 1px var(--ring-hairline); }
 .message-content { min-width: 0; max-width: min(80%, 680px); }
 .message-bubble { overflow: hidden; border: 0; padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg); background: var(--color-canvas-muted); }
 .message-assistant .message-bubble { border-radius: 0; background: transparent; padding: var(--space-3) 0; }
@@ -2581,18 +2580,6 @@ input:not([type="radio"]):not([type="checkbox"]):not([class^="ant-"]):not([class
   margin-top: var(--space-8);
 }
 
-.conversation:not(.is-empty):not(.is-rectification) .message-assistant {
-  gap: var(--space-4);
-}
-
-.conversation:not(.is-empty):not(.is-rectification) .message-assistant .agent-avatar {
-  width: 30px;
-  height: 30px;
-  flex-basis: 30px;
-  margin-top: 2px;
-  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-border) 82%, transparent);
-}
-
 
 .conversation:not(.is-empty):not(.is-rectification) .message-assistant .message-bubble {
   padding: 0 0 var(--space-2);
@@ -2676,10 +2663,6 @@ input:not([type="radio"]):not([type="checkbox"]):not([class^="ant-"]):not([class
     margin-top: var(--space-6);
   }
 
-  .conversation:not(.is-empty):not(.is-rectification) .message-assistant {
-    gap: var(--space-3);
-  }
-
   
   .conversation:not(.is-empty):not(.is-rectification) .message-user .message-content {
     max-width: 88%;
@@ -2888,9 +2871,9 @@ input:not([type="radio"]):not([type="checkbox"]):not([class^="ant-"]):not([class
    The pending state keeps the same box for the same reason. */
 .rectification-workspace__chat {
   --rectification-timeline-height: 64px;
-  /* Same token as `.message-list`: avatar 32px + gap. The bar sits outside the
-     transcript, so it cannot inherit that custom property from there. */
-  --assistant-content-inset: calc(32px + var(--space-3));
+  /* Same token as `.message-list`. The bar sits outside the transcript, so it
+     cannot inherit that custom property from there. */
+  --assistant-content-inset: 0px;
 }
 .rectification-timeline {
   height: var(--rectification-timeline-height);