Honest generation wait-time copy + humanize em-dashes

[upgradedev]

Summary

Copy-only PR, two coupled goals. No logic, routing, timeout, or pipeline changes — only user-visible strings (and the tests that assert on them).

A. Honest wait-time expectations

• Hero.tsx — dropped the false ~30 seconds claim from the sub-CTA caption (a live reel is a multi-minute AI render, not 30s). Now reads No account · No watermark.
• GenerateReel.tsx (in-flight screen) — added one honest line under the heading: "A live reel can take a few minutes to render. No need to refresh, this updates on its own." lib/progress.ts progress math is untouched.
• GenerateReel.tsx (failure screen) — humanized the copy and softened the raw error:
  • Subtitle: Something interrupted the render. Your photos and occasion are safe — try again. → Your photos and occasion are safe. Just try again.
  • The raw ApiError message (e.g. Request to /reels/upload-multipart failed (504).) is no longer shown as the headline. A gateway-timeout status (504/502/503/408) now reads as "This is taking longer than expected. Please try again in a moment."; other failures read as "We couldn't finish this one. Please try again." The raw technical detail (path + status) still renders underneath as a small secondary line, never the headline. Added GenerateReel.test.tsx coverage for the timeout path (previously untested -- the only existing failure test used a plain Error, never touching the new ApiError/status branches).

B. Em-dash / en-dash humanization

Scoped by grepping em-dash (U+2014) and en-dash (U+2013) across all of frontend/ (not just src/, and including index.html), then classifying every hit. Code comments, JSDoc, CSS comments, describe/it test labels, README.md, and package.json's npm metadata description were left untouched (never user-visible). Every genuinely user-visible dash was rewritten as two short sentences, a colon, a comma, or a parenthetical -- never just deleted.

#	File	Before -> After
1	index.html	cinematic memory reel — scored, stitched, -> cinematic memory reel: scored, stitched,
2	index.html	<title>Cinemory — your memories, made into film</title> -> Cinemory: your memories, made into film
3	Footer.tsx	Cinemory — your memories, made into film. -> Cinemory. Your memories, made into film.
4	Hero.tsx	title cards — an editor's eye, automated. -> title cards: an editor's eye, automated.
5	Hero.tsx	year-in-review — each with its own pacing -> year-in-review: each with its own pacing
6	Hero.tsx	manifest is sealed — verifiable, tamper-evident. -> manifest is sealed: verifiable, tamper-evident.
7	Hero.tsx	cinematic reel — and seals it with -> cinematic reel, and seals it with
8	Hero.tsx	small teams — no video editor required. -> small teams. No video editor required.
9	Hero.tsx	No account · No watermark · ~30 seconds -> No account · No watermark (= Task A)
10	HashChip.tsx	tooltip ${hash} — click to copy -> ${hash} (click to copy)
11	HowItWorks.tsx	handful of moments — the order you choose -> handful of moments. The order you choose
12	HowItWorks.tsx	cryptographically verify — in seconds. -> cryptographically verify in seconds.
13	ShareBar.tsx	share-sheet title Cinemory — ${reel_name} -> Cinemory: ${reel_name}
14	ShareBar.tsx	isn't available here — use Download or Copy link. -> isn't available here. Use Download or Copy link instead.
15	ShareBar.tsx	Copy failed — copy the address from the address bar instead. -> Copy failed. Copy the address from the address bar instead.
16	ShareBar.tsx	share yet — the reel is still stored and sealed -> share yet. The reel is still stored and sealed
17	lib/api.ts	Network unreachable — check your connection. -> Network unreachable. Check your connection and try again.
18	lib/provenance-verify.ts	manifest couldn't be fetched — check your connection and retry. -> manifest couldn't be fetched. Check your connection and retry.
19	lib/provenance-verify.ts	does NOT match the sealed manifest_hash — the manifest bytes have changed. -> does NOT match the sealed manifest_hash. The manifest bytes have changed.
20	lib/provenance-verify.ts	re-fetched manifest — it matches the sealed manifest_hash. -> re-fetched manifest. It matches the sealed manifest_hash.
21	lib/provenance-verify.ts	verification receipt couldn't be fetched — check your connection and retry. -> verification receipt couldn't be fetched. Check your connection and retry.
22	ProvenancePanel.tsx	manifest is sealed — tampering with any field breaks the hash. -> manifest is sealed. Tampering with any field breaks the hash.
23	ProvenancePanel.tsx	empty reel_url placeholder "—" -> "(none)" (now matches ShareBar.tsx's existing fallback for the same field)
24	ProvenancePanel.tsx	checks passed — all verified / — tamper detected -> checks passed. All verified. / . Tamper detected.
25	ExampleReel.tsx	aria-label Example Cinemory reel — a cinematic sequence -> Example Cinemory reel: a cinematic sequence
26	ReelResult.tsx	Preview slideshow of your photos — the reel file plays here -> Preview slideshow of your photos. The reel file plays here
27	PhotoUpload.tsx	set the story — the order becomes the edit. -> set the story. The order becomes the edit.
28	PhotoUpload.tsx	Tip: 4–12 photos (en-dash range) -> Tip: 4 to 12 photos
29	OccasionPicker.tsx	title style — the whole edit changes with your choice. -> title style. The whole edit changes with your choice.
30	GenerateReel.tsx	occasion subtitle reel — ${music_style}. -> reel: ${music_style}.
31	GenerateReel.tsx	failure subtitle (= Task A, see above)
32	lib/utils.ts	shortHash empty fallback "—" -> "N/A"
33	lib/utils.ts	formatBytes nullish fallback "—" -> "N/A"

Deliberately left as-is (not user-visible, or a different typographic convention): all //, /* */, /** */ comments and describe/it/test labels across the codebase; README.md (explicit separate concern per scope); package.json's npm description metadata; frontend/src/lib/share.test.ts's Cinemory — demo fixture (an arbitrary internal test input to the pure shareReel() helper, independent of the real title template fixed in item 13).

Note: frontend/web/ is a separate client in this monorepo with its own CI job and likely carries some of the same copy; it's outside this task's frontend/src scope and was intentionally left untouched.

Test plan

• Updated e2e/journey.spec.ts and ProvenancePanel.test.tsx regexes for the checks passed. All verified. copy change.
• Updated utils.test.ts assertions + descriptions for the N/A placeholder change.
• Added GenerateReel.test.tsx coverage for the 504 timeout path (new behavior, previously untested).
• Read every other test file touching a changed component; all other assertions use case-insensitive substring regexes that survive the punctuation-only rewrites, so no other test changes were needed.
• Final repo-wide grep confirms zero user-facing em/en-dashes remain outside comments/labels/README/package.json.
• CI (typecheck, vitest coverage gate, Playwright e2e, Lighthouse a11y) — pending.