feat(history): mirror detail page + rich day cards + review hardening (#64)

* feat(history): mirror day-detail cards + routed detail page at /mirror/$id

- DayDetailCard renders mirror reflections as rich rows: context badge,
  time, story-reframe headline, highlight-phrase pull quote, transcript
  snippet, plus a "Show more →" link for backend-backed entries
- New MirrorDetailSheet at /mirror/$id shows the full mirror: Story
  reframe, Validation, Inferred meaning, Transcript, with Confirm /
  Forget actions for pending reviews; sidebar carries date, time, context,
  status, and mood tags
- Route lives at /mirror/$id (not /history/mirror/$id) because TanStack's
  matcher picks /history/$tab over the more specific /history/mirror/$id
  when both sit under _app/history
- Distinguish "Loading…" (captures slice not yet hydrated) from "couldn't
  find that mirror" (genuinely missing)
- backend-snapshot: validation flows from MirrorEntryRow into the snapshot
  (optional on the type so incremental captures.patch writes are unaffected)

* fix(history): rename day-card section "Mirrors" → "Reflections"

"Mirror" is the agent name; "reflection" is the student-facing capture.
The list heading is user-facing copy, so match the noun the user owns.

* chore(demo): land demo reflections in the current week, hide redundant status line

- Shift all seed timestamps forward 182 days so demo data lands in
  the 2026-04 to 2026-05 window (was 2025-07 to 2025-11). Demo-a's
  8 reflections are then re-spread across May 18–30 so the calendar's
  default 'this week' view shows reflection markers on multiple days
- Day detail card: drop the literal `status: confirmed` text — review
  state is already implicit (Confirm/Forget appear only when pending),
  and the detail page surfaces the status badge explicitly

* feat(history): make day-card reflections clickable, drop per-card chrome

- Each reflection card is now itself a link to /mirror/$id (when
  backend-backed); no separate "Show more" button
- Drop the per-card "Reflection" label — the section heading already says
  "Reflections", repeating it on every row is noise
- Drop Confirm/Forget buttons + status text from the card; reviews live
  on the detail page where there's room for the full context
- Generic non-ask captures keep their text-only render with the kind
  label removed for the same reason

* chore(history): drop dead review/sync code; calendar mood icon goes white when selected

DayDetailCard:
- Remove CaptureActions component, reviewCapture / retryCaptureSync
  handlers, patchReviewCapture, syncLine helper, and their state. All
  unused now that the day card is a passive list of clickable cards.

CalendarPane:
- Mood Smile icon flips to text-white when its day cell is selected,
  matching the reflection/event icons that already do.

* fix(seed): scope per-student wipes by student_id explicitly

resetSeedStudent ran unqualified DELETEs and relied on the RLS policy
to scope them to the current student. The seed CLI typically runs as
neondb_owner which has BYPASSRLS, so those DELETEs wiped every
student's rows on each iteration — only the last student's seed
survived. Same problem made the 'existing count' check see other
students' rows and skip them on subsequent runs.

Fix: filter every reset DELETE by studentId, and filter the existing
count query the same way. Correct under both RLS-enforced and
BYPASSRLS roles.

* fix(history): darken disgust mood color #9CC36E → #5E9135 for stronger contrast

* feat(history): use mood shape images instead of smile icons

Replace the single lucide Smile icon (color-tinted per emotion) with
the existing 3D-style shape art from `mood-shapes.ts`:
- Calendar cell mood markers render the shape image (sphere / teardrop
  / octahedron / cube / torus / capsule / egg / halfcube / disk)
- Day-detail card "Moods" list shows the shape next to the emotion name
  in place of the small colored dot

Drop the local MOOD_HEX color maps in both files — the shape SVG owns
its own palette via EMOTIONS, so duplicated hex constants were stale
and prone to drift.

---------

Co-authored-by: Reza Ilmi <reza.ilmi@gt.tech.gov.sg>

Author: rezailmi

src/components/student-space/sheets/CalendarPane.tsx

@@ -3,6 +3,7 @@ import { Toggle } from '@base-ui-components/react/toggle'
 import { ToggleGroup } from '@base-ui-components/react/toggle-group'
 import { CalendarDays, Camera, ChevronLeft, ChevronRight, NotebookPen, Smile } from 'lucide-react'
 import { useEffect, useMemo, useState } from 'react'
+import { EMOTION_BY_ID, shapeDataUri } from '~/lib/student-space/mood-shapes'
 import { cn } from '~/lib/utils'
 
 /**
@@ -15,18 +16,6 @@ import { cn } from '~/lib/utils'
  * Tailwind variant only, not a full re-render of the calendar (PR #33
  * invariant).
  */
-const MOOD_HEX: Record<string, string> = {
-  joy: '#FFD66B',
-  sadness: '#7FB3D9',
-  anger: '#E36A55',
-  fear: '#B49AD6',
-  disgust: '#9CC36E',
-  anxiety: '#F1A04E',
-  envy: '#6FC2B3',
-  embarrassment: '#F0A6B5',
-  ennui: '#A8A5BD',
-}
-
 const DAY_LABELS = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
 const MONTH_NAMES = [
   'January',
@@ -271,15 +260,21 @@ export function CalendarPane({
               >
                 <span className="text-xs font-medium tabular-nums">{cell.getDate()}</span>
                 <div className="mt-auto flex min-h-2 flex-wrap items-center gap-0.5">
-                  {cellMoods.slice(0, 3).map((mood, i) => (
-                    <Smile
-                      // biome-ignore lint/suspicious/noArrayIndexKey: mood badges are positional within a day
-                      key={i}
-                      aria-hidden
-                      className="size-3"
-                      style={{ color: MOOD_HEX[mood.emotion ?? ''] ?? '#bbb' }}
-                    />
-                  ))}
+                  {cellMoods.slice(0, 3).map((mood, i) => {
+                    const emotion = EMOTION_BY_ID[mood.emotion ?? '']
+                    if (!emotion) return null
+                    return (
+                      <img
+                        // biome-ignore lint/suspicious/noArrayIndexKey: mood badges are positional within a day
+                        key={i}
+                        src={shapeDataUri(emotion)}
+                        alt=""
+                        aria-hidden
+                        className="size-3.5"
+                        draggable={false}
+                      />
+                    )
+                  })}
                   {cellCaps.length > 0
                     ? (() => {
                         const hasPhoto = cellCaps.some((c) => c.kind === 'photo')