feat: publication IA (magazine/brief/essay) + fixes critique

Publication IA:
- 4 templates (magazine, brief, essay, simple) avec CSS riche
- Rewrite IA (article/exercises/tutorial/reference/mixed)
- Modération avec timeout 12s + fallback safe
- Quotas publish_enhance par tier (basic=2, pro=15, business=100)
- Détection contenu stale (hash)
- Migration DB publishedContent/publishedTemplate/publishedSourceHash

Fixes:
- cheerio v1.2: Element -> AnyNode (domhandler), decodeEntities cast
- _isShared ajouté au type Note (champ virtuel serveur)
- callout colors PDF export: extraction fonction pure testable
- admin/published: guard note.userId null
- Cmd+S fonctionne en mode dialog (pas seulement fullPage)

i18n:
- 23 clés publish* traduites dans les 15 locales
- Extension Web Clipper: 13 locales mise à jour

Tests:
- callout-colors.test.ts (6 tests)
- note-visible-in-view.test.ts (5 tests)
- entitlements.test.ts + byok-entitlements.test.ts: mock usageLog + unstubAllEnvs
- 199/199 tests passent

Tracker: user-stories.md sync avec sprint-status.yaml

memento-note/extension/_locales/en/messages.json

@@ -1,12 +1,12 @@
 {
   "extName": {
-    "message": "Momento Web Clipper"
+    "message": "Memento Web Clipper"
   },
   "extDescription": {
-    "message": "Capture web pages and highlighted text into your Momento notebooks — connects to your own Momento server."
+    "message": "Capture web pages and highlighted text into your Memento notebooks — connects to your own Memento server."
   },
   "extActionTitle": {
-    "message": "Clip to Momento"
+    "message": "Clip to Memento"
   },
   "webClipper": {
     "message": "Web Clipper"
@@ -18,10 +18,10 @@
     "message": "Not connected"
   },
   "instanceSettings": {
-    "message": "Momento URL"
+    "message": "Memento URL"
   },
   "instanceUrlLabel": {
-    "message": "Your Momento instance URL"
+    "message": "Your Memento instance URL"
   },
   "presetProduction": {
     "message": "Production preset · memento-note.com"
@@ -30,16 +30,16 @@
     "message": "Apply and reconnect"
   },
   "openMomento": {
-    "message": "Open Momento"
+    "message": "Open Memento"
   },
   "settingsHint": {
-    "message": "Paste the HTTPS (or LAN) URL of your Momento server. Cookies in this browser handle sign-in."
+    "message": "Paste the HTTPS (or LAN) URL of your Memento server. Cookies in this browser handle sign-in."
   },
   "footerVersion": {
-    "message": "Momento Web Clipper 0.3.1"
+    "message": "Memento Web Clipper 0.3.1"
   },
   "errPermissionDenied": {
-    "message": "Momento can't access this tab. Check keyboard/site extension permissions — or open the Side Panel."
+    "message": "Memento can't access this tab. Check keyboard/site extension permissions — or open the Side Panel."
   },
   "notebookUnnamed": {
     "message": "Untitled notebook"
@@ -81,7 +81,7 @@
     "message": "Can't clip here — this page blocks extension access."
   },
   "errLoginRequired": {
-    "message": "Please sign in to Momento in this browser first."
+    "message": "Please sign in to Memento in this browser first."
   },
   "errLoadNotebooks": {
     "message": "Could not load notebooks. Try reconnecting."
@@ -102,7 +102,7 @@
     }
   },
   "restrictedPage": {
-    "message": "Restricted page — clip via the Momento toolbar or Side Panel."
+    "message": "Restricted page — clip via the Memento toolbar or Side Panel."
   },
   "destinationNotebook": {
     "message": "Destination notebook"
@@ -120,7 +120,7 @@
     "message": "Excerpt"
   },
   "saveToMomento": {
-    "message": "Save to Momento"
+    "message": "Save to Memento"
   },
   "back": {
     "message": "Back"
@@ -150,7 +150,7 @@
     }
   },
   "viewInMomento": {
-    "message": "View in Momento"
+    "message": "View in Memento"
   },
   "clipAnother": {
     "message": "Clip another page"
@@ -159,7 +159,7 @@
     "message": "Could not complete"
   },
   "genericError": {
-    "message": "Something went wrong reaching your Momento instance."
+    "message": "Something went wrong reaching your Memento instance."
   },
   "retry": {
     "message": "Retry"
@@ -174,7 +174,7 @@
     "message": "Could not save your note."
   },
   "errNetwork": {
-    "message": "Network issue — check your connection and Momento URL."
+    "message": "Network issue — check your connection and Memento URL."
   },
   "bannerPickText": {
     "message": "Highlight text on the page, or clip the whole page."