feat(seed): attach the Sec 2 Camp photo via a photo: mirror tag

The mirror row has no image column, so seeded reflections could never
show a picture. A `photo:` tag (same lane as mood: tags) now carries a
public asset path from the seed fixture through the snapshot mapper into
the capture's dataUrl, which the mirror detail pane already renders as
the top section. Ships public/seed/sec2-camp.jpg and tags the Sec 2 Camp
demo reflection. Verified end-to-end in a fresh browser via agent-browser
(demo sign-in → History → Jul 24 → photo renders above the quote).

Claude-Session: https://claude.ai/code/session_01863ZQb27dqWrPfEcjHKcr4

Author: Reza Ilmi

public/seed/sec2-camp.jpg

@@ -16,7 +16,7 @@ import { eq, sql } from 'drizzle-orm'
 import type { Mood, VipsClaimStrength, VipsContextType } from '~/agents/tools/schemas'
 import { VIPS_DIMENSIONS, type VipsDimension } from '~/data/vips-taxonomy'
 import { sgDateKey } from '~/lib/entry-date'
-import { mirrorMoodTag } from '~/server/mood-tags'
+import { mirrorMoodTag, mirrorPhotoTag } from '~/server/mood-tags'
 import { type TenantContext, withStudent } from './client'
 import { type CartographerPathway, insertCartographerOutput, upsertVipsPage } from './queries'
 import {
@@ -50,6 +50,11 @@ export interface SeedReflectionFixture {
   story_reframe?: string
   review_status?: SeedMirrorReviewStatus
   mood?: Mood
+  /** Public asset path for a photo attached to the reflection (e.g.
+   *  "/seed/sec2-camp.jpg"). Stored as a `photo:` mirror tag — the mirror
+   *  row has no image column — and surfaced by the snapshot mapper as the
+   *  capture's `dataUrl`. */
+  photo?: string
   created_at: string
 }
 
@@ -259,6 +264,9 @@ export async function seed(): Promise<SeedResult> {
         if (r.mood) {
           await attachMirrorTag(ctx.db, student.student_id, reflectionId, mirrorMoodTag(r.mood))
         }
+        if (r.photo) {
+          await attachMirrorTag(ctx.db, student.student_id, reflectionId, mirrorPhotoTag(r.photo))
+        }
         count++
       }
 

src/db/seed.ts

@@ -5,6 +5,7 @@ import type { AuthMenuState } from '~/server/auth-menu.handler.server'
 import type { LoadTrajectoryResult } from '~/server/load-trajectory.handler.server'
 import type { LoadVipsPagesResult } from '~/server/load-vips-pages.handler.server'
 import type { WikiSnapshot } from '~/server/load-wiki.handler.server'
+import { photoFromMirrorTags } from '~/server/mood-tags'
 
 export interface StudentSpaceProfileQuote {
   id: string
@@ -47,6 +48,9 @@ export interface StudentSpaceReflectionCaptureSnapshot {
    *  incremental `captures.patch` writes (AskSheet, retry sync) don't carry
    *  this field; the detail view reads it via optional chaining. */
   validation?: string
+  /** Photo attached to the reflection — a public asset path (seeded via a
+   *  `photo:` mirror tag) or, for local captures, a data URL. */
+  dataUrl?: string
   reframe: {
     headline: string
     highlightPhrase: string
@@ -295,6 +299,7 @@ export function mapMirrorEntryToReflectionCapture(
     kind: 'ask',
     text: entry.transcript,
     ...(entry.title ? { title: entry.title } : {}),
+    ...(photoUrl(entry) ? { dataUrl: photoUrl(entry) as string } : {}),
     validation: entry.validation,
     reframe: {
       headline: entry.story_reframe,
@@ -436,6 +441,10 @@ function mirrorCaptureId(id: number): string {
   return `mirror:${id}`
 }
 
+function photoUrl(entry: MirrorEntryRow): string | null {
+  return photoFromMirrorTags(entry.tags)
+}
+
 function toEntryDate(value: string): string {
   return sgDateKey(value) ?? '1970-01-01'
 }

src/lib/student-space/backend-snapshot.ts

@@ -6,6 +6,23 @@ export function mirrorMoodTag(mood: Mood): string {
   return `${MIRROR_MOOD_TAG_PREFIX}${mood}`
 }
 
+// Photo attachment rides the same tag lane — the mirror row has no image
+// column. The value is a public asset path or data URL.
+export const MIRROR_PHOTO_TAG_PREFIX = 'photo:' as const
+
+export function mirrorPhotoTag(url: string): string {
+  return `${MIRROR_PHOTO_TAG_PREFIX}${url}`
+}
+
+export function photoFromMirrorTags(tags: readonly string[]): string | null {
+  for (const tag of tags) {
+    if (!tag.startsWith(MIRROR_PHOTO_TAG_PREFIX)) continue
+    const url = tag.slice(MIRROR_PHOTO_TAG_PREFIX.length).trim()
+    if (url.length > 0) return url
+  }
+  return null
+}
+
 export function moodFromMirrorTags(tags: readonly string[]): Mood | null {
   for (const tag of tags) {
     if (!tag.startsWith(MIRROR_MOOD_TAG_PREFIX)) continue

src/server/mood-tags.ts

@@ -78,7 +78,8 @@
           "story_reframe": "Joseph's ankle is the piece of camp you can't put down: how fast it happened, the worry, and then the quieter thought — CPR training doesn't cover this. You walked away with a gap you now know exists.",
           "review_status": "confirmed",
           "created_at": "2026-07-24T06:30:00Z",
-          "title": "Sec 2 Camp"
+          "title": "Sec 2 Camp",
+          "photo": "/seed/sec2-camp.jpg"
         },
         {
           "context_type": "school",