refactor(brand): rename F∆I -> Ch∆In + hub binary fai -> chain

Studio follows the platform rename: product branding F∆I -> Ch∆In in UI
strings, command examples fai -> chain, and — critically — the spawned
hub binary path ~/.fai/bin/fai -> ~/.fai/bin/chain so Studio launches
the renamed binary. The fai_* Dart identifiers (FaiLog, widget files,
the generated SDK) stay = vendor/internal namespace. flutter analyze:
no issues.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_de.arb

@@ -1,8 +1,8 @@
 {
   "@@locale": "de",
-  "appTitle": "F∆I Studio",
+  "appTitle": "Ch∆In Studio",
   "navWelcome": "Willkommen",
-  "welcomeHeroTitle": "F∆I Platform",
+  "welcomeHeroTitle": "Ch∆In Platform",
   "welcomeHeroSubtitle": "Deterministische Workflow-Engine für KI-gestützte Dokumentenverarbeitung in regulierten Umgebungen.",
   "welcomePillarHubTitle": "Hub",
   "welcomePillarHubBody": "Ein Rust-Binary, das Module lädt und Flows ausführt. SQLite für den State. Kein Docker, kein Message-Broker, keine Hintergrunddienste, die gepflegt werden müssen.",
@@ -60,7 +60,7 @@
   "welcomeChecklistMcp": "Öffentliche Capability-Quelle hinzufügen",
   "welcomeChecklistMcpHint": "Im Store eine MCP-Quelle hinzufügen oder unter Einstellungen → MCP-Clients konfigurieren.",
   "welcomeChecklistModule": "Ein Text-Modul installieren",
-  "welcomeChecklistModuleHint": "Im Store ein Modul aus der Kategorie deiner Wahl installieren. Module sind sandboxed F∆I-Komponenten.",
+  "welcomeChecklistModuleHint": "Im Store ein Modul aus der Kategorie deiner Wahl installieren. Module sind sandboxed Ch∆In-Komponenten.",
   "welcomeChecklistFlow": "Einen gespeicherten Flow starten",
   "welcomeChecklistFlowHint": "Flows → einen wählen → Starten. Studio bringt einige Demo-Flows mit; auch ein eigener tut's.",
   "welcomeChecklistAllDone": "Alle vier Schritte erledigt.",
@@ -320,7 +320,7 @@
   },
   "storeReloadTooltip": "Aktualisieren",
   "storeTodayBadge": "HEUTE",
-  "storeTodayDeck": "Von der F∆I-Redaktion",
+  "storeTodayDeck": "Von der Ch∆In-Redaktion",
   "storeTodayDismissTooltip": "Für diese Sitzung ausblenden",
   "storePillInstalled": "installiert",
   "storePillUpdate": "Update",
@@ -607,7 +607,7 @@
   "auditClearLogButton": "Log löschen",
   "modulesTitle": "Module",
   "modulesNoneTitle": "Noch keine Module",
-  "modulesNoneHint": "`fai install <capability-name>` ausführen oder ~/.fai/modules/ prüfen.",
+  "modulesNoneHint": "`chain install <capability-name>` ausführen oder ~/.fai/modules/ prüfen.",
   "modulesReloadTooltip": "Aktualisieren",
   "modulesRecentActivity": "LETZTE AKTIVITÄT",
   "modulesRecentActivityHint": "letzte {n} install/uninstall-Ereignisse aus dem Audit-Log",
@@ -667,7 +667,7 @@
   "flowsTitle": "Flows",
   "flowsReloadTooltip": "Aktualisieren",
   "flowsNoneTitle": "Keine gespeicherten Flows",
-  "flowsNoneHint": "Flow speichern mit `fai admin flows save <name> <flow.yaml>`, dann taucht er hier auf.",
+  "flowsNoneHint": "Flow speichern mit `chain admin flows save <name> <flow.yaml>`, dann taucht er hier auf.",
   "flowsRunDialogTitle": "{name} ausführen",
   "@flowsRunDialogTitle": {
     "placeholders": {
@@ -849,7 +849,7 @@
   "welcomeChecklistNextTodayBody": "tools/today/propose.sh per Cron laufen lassen und die Editorial-Karte im Store füllt sich mit operator-kuratierten Stories.",
   "welcomeChecklistNextTodayButton": "Today-Doku öffnen",
   "welcomeChecklistNextModuleTitle": "Eigenes Modul bauen",
-  "welcomeChecklistNextModuleBody": "Mit `fai new module <name>` ein Rust+WASM-Scaffold erzeugen. Das module-sdk übernimmt die WIT-Plumbing; du schreibst nur ein typisiertes invoke.",
+  "welcomeChecklistNextModuleBody": "Mit `chain new module <name>` ein Rust+WASM-Scaffold erzeugen. Das module-sdk übernimmt die WIT-Plumbing; du schreibst nur ein typisiertes invoke.",
   "welcomeChecklistNextModuleButton": "Doku lesen",
   "auditGroupToday": "HEUTE",
   "auditGroupYesterday": "GESTERN",
@@ -954,7 +954,7 @@
   "errInternal": "Unerwarteter interner Fehler.",
   "errInternalHint": "Hub-Logs unter `~/.fai/logs/` prüfen. Wenn das öfter passiert, bitte melden.",
   "errUnavailable": "Hub nicht erreichbar.",
-  "errUnavailableHint": "Sicherstellen, dass `fai serve` (oder `fai daemon start`) läuft und der Daemon-Endpunkt zu Studios Einstellungen passt.",
+  "errUnavailableHint": "Sicherstellen, dass `chain serve` (oder `chain daemon start`) läuft und der Daemon-Endpunkt zu Studios Einstellungen passt.",
   "errUnauthenticated": "Authentifizierung erforderlich.",
   "errUnauthenticatedHint": "`FAI_REGISTRY_TOKEN` setzen oder in den Einstellungen anmelden, dann erneut versuchen.",
   "errCopyDetail": "Detail kopieren",
@@ -1173,7 +1173,7 @@
   "doctorStatusUnknown": "Daemon-Status: …",
   "doctorPillRunning": "läuft",
   "doctorPillStopped": "gestoppt",
-  "doctorDaemonControlHint": "Studio ruft das Platform-Binary auf — entspricht `fai daemon …`, sodass CLI und UI im Gleichschritt bleiben.",
+  "doctorDaemonControlHint": "Studio ruft das Platform-Binary auf — entspricht `chain daemon …`, sodass CLI und UI im Gleichschritt bleiben.",
   "doctorDaemonControlWorking": "Wird ausgeführt…",
   "doctorPathLog": "Log",
   "doctorPathConfig": "Konfig",
@@ -1181,7 +1181,7 @@
   "doctorPathModules": "Module-Verzeichnis",
   "doctorPathFlows": "Flow-Verzeichnis",
   "doctorPathPid": "PID-Datei",
-  "doctorPathsEmpty": "Daemon hat keine Datei-Pfade gemeldet. Hub aktualisieren via `fai daemon restart`.",
+  "doctorPathsEmpty": "Daemon hat keine Datei-Pfade gemeldet. Hub aktualisieren via `chain daemon restart`.",
   "doctorOpenError": "Konnte nicht öffnen: {detail}",
   "@doctorOpenError": {
     "placeholders": {
@@ -1198,7 +1198,7 @@
       }
     }
   },
-  "doctorUpdateBody": "Kanal {channel} bietet jetzt {version}. Per Button anwenden — Studio ruft `fai update apply --channel {channel}` auf.",
+  "doctorUpdateBody": "Kanal {channel} bietet jetzt {version}. Per Button anwenden — Studio ruft `chain update apply --channel {channel}` auf.",
   "@doctorUpdateBody": {
     "placeholders": {
       "channel": {
@@ -1238,7 +1238,7 @@
   "n8nHint": "Aktive n8n-Workflows erscheinen als `n8n.<endpoint>.<slug>` Fähigkeiten. Einmal konfigurieren, im Store sichtbar.",
   "n8nEmpty": "Keine n8n-Endpunkte konfiguriert. + klicken zum Hinzufügen.",
   "hubUnreachable": "Hub nicht erreichbar",
-  "hubUnreachableHint": "Hub starten mit `fai serve`.",
+  "hubUnreachableHint": "Hub starten mit `chain serve`.",
   "languageEnglish": "English",
   "languageGerman": "Deutsch",
   "searchHint": "Springe überall hin — Module, Store, Flows, Seiten…",
@@ -1511,8 +1511,8 @@
   "addSourceField": "URL oder Pfad zum .fai-Bundle",
   "addSourceHint": "https://git.flemming.ai/deine-org/dein-modul/releases/download/v0.1.0/foo-0.1.0.fai",
   "addSourceHowItWorksTitle": "Wie private Module funktionieren",
-  "addSourceHowItWorksBody": "Ein Modul ist ein Verzeichnis mit module.yaml + WASM-Artefakt. Zum Teilen: `fai pack <verzeichnis>` baut ein `.fai`-Bundle, das du beliebig hosten kannst (eigene Forgejo / GitHub / S3). Der Hub installiert per URL und prüft die Signatur gegen seinen Trust-Store.\n\nLokal entwickeln? Nimm das CLI — Studio installiert (noch) nicht aus einem unverpackten Verzeichnis:",
-  "addSourceCliExample": "fai install --link /pfad/zum/modul",
+  "addSourceHowItWorksBody": "Ein Modul ist ein Verzeichnis mit module.yaml + WASM-Artefakt. Zum Teilen: `chain pack <verzeichnis>` baut ein `.fai`-Bundle, das du beliebig hosten kannst (eigene Forgejo / GitHub / S3). Der Hub installiert per URL und prüft die Signatur gegen seinen Trust-Store.\n\nLokal entwickeln? Nimm das CLI — Studio installiert (noch) nicht aus einem unverpackten Verzeichnis:",
+  "addSourceCliExample": "chain install --link /pfad/zum/modul",
   "addSourceInstallButton": "Installieren",
   "addSourceCancel": "Abbrechen",
   "installFailed": "Installation fehlgeschlagen: {error}",
@@ -1540,7 +1540,7 @@
     }
   },
   "faiBinaryNotFound": "Das Programm `fai` wurde auf diesem Rechner nicht gefunden.",
-  "faiBinaryNotFoundHint": "Installiere die F∆I-Plattform oder verweise Studio auf eine vorhandene `fai`-Datei.",
+  "faiBinaryNotFoundHint": "Installiere die Ch∆In-Plattform oder verweise Studio auf eine vorhandene `fai`-Datei.",
   "faiBinaryLocateButton": "`fai`-Programm suchen …",
   "faiBinaryInstallDocsButton": "Installationsanleitung öffnen",
   "faiBinaryPickerTitle": "`fai`-Programm auswählen",

lib/l10n/app_en.arb

@@ -1,11 +1,11 @@
 {
   "@@locale": "en",
-  "appTitle": "F∆I Studio",
+  "appTitle": "Ch∆In Studio",
   "@appTitle": {
     "description": "App-bar title in the OS task switcher."
   },
   "navWelcome": "Welcome",
-  "welcomeHeroTitle": "F∆I Platform",
+  "welcomeHeroTitle": "Ch∆In Platform",
   "welcomeHeroSubtitle": "Deterministic workflow engine for AI-assisted document processing in regulated environments.",
   "welcomePillarHubTitle": "Hub",
   "welcomePillarHubBody": "One Rust binary that loads modules and runs flows. SQLite for state. No Docker, no message broker, no background services to babysit.",
@@ -63,7 +63,7 @@
   "welcomeChecklistMcp": "Add a public capability source",
   "welcomeChecklistMcpHint": "Add an MCP source from the Store, or configure one under Settings → MCP Clients.",
   "welcomeChecklistModule": "Install a text module",
-  "welcomeChecklistModuleHint": "Install a module from the Store — pick whichever category fits your work. Modules are sandboxed F∆I components.",
+  "welcomeChecklistModuleHint": "Install a module from the Store — pick whichever category fits your work. Modules are sandboxed Ch∆In components.",
   "welcomeChecklistFlow": "Run a saved flow",
   "welcomeChecklistFlowHint": "Flows → pick one → Run. Studio ships a few demo flows; one of your own works too.",
   "welcomeChecklistAllDone": "All four steps complete.",
@@ -323,7 +323,7 @@
   },
   "storeReloadTooltip": "Reload",
   "storeTodayBadge": "TODAY",
-  "storeTodayDeck": "From the F∆I editor",
+  "storeTodayDeck": "From the Ch∆In editor",
   "storeTodayDismissTooltip": "Hide for this session",
   "storePillInstalled": "installed",
   "storePillUpdate": "update",
@@ -610,7 +610,7 @@
   "auditClearLogButton": "Clear log",
   "modulesTitle": "Modules",
   "modulesNoneTitle": "No modules yet",
-  "modulesNoneHint": "Run `fai install <capability-name>` or check ~/.fai/modules/.",
+  "modulesNoneHint": "Run `chain install <capability-name>` or check ~/.fai/modules/.",
   "modulesReloadTooltip": "Reload",
   "modulesRecentActivity": "RECENT ACTIVITY",
   "modulesRecentActivityHint": "last {n} install/uninstall events from the audit log",
@@ -670,7 +670,7 @@
   "flowsTitle": "Flows",
   "flowsReloadTooltip": "Reload",
   "flowsNoneTitle": "No saved flows",
-  "flowsNoneHint": "Save a flow with `fai admin flows save <name> <flow.yaml>` and it shows up here.",
+  "flowsNoneHint": "Save a flow with `chain admin flows save <name> <flow.yaml>` and it shows up here.",
   "flowsRunDialogTitle": "Run {name}",
   "@flowsRunDialogTitle": {
     "placeholders": {
@@ -852,7 +852,7 @@
   "welcomeChecklistNextTodayBody": "Run tools/today/propose.sh on a cron and the editorial card on the store auto-fills with operator-curated narratives.",
   "welcomeChecklistNextTodayButton": "Open Today docs",
   "welcomeChecklistNextModuleTitle": "Build your own module",
-  "welcomeChecklistNextModuleBody": "Generate a Rust+WASM scaffold with `fai new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.",
+  "welcomeChecklistNextModuleBody": "Generate a Rust+WASM scaffold with `chain new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.",
   "welcomeChecklistNextModuleButton": "Read the docs",
   "auditGroupToday": "TODAY",
   "auditGroupYesterday": "YESTERDAY",
@@ -957,7 +957,7 @@
   "errInternal": "Unexpected internal error.",
   "errInternalHint": "Check the hub logs at `~/.fai/logs/`. If this repeats, please report it.",
   "errUnavailable": "Hub not reachable.",
-  "errUnavailableHint": "Make sure `fai serve` (or `fai daemon start`) is running and the daemon endpoint matches Studio's settings.",
+  "errUnavailableHint": "Make sure `chain serve` (or `chain daemon start`) is running and the daemon endpoint matches Studio's settings.",
   "errUnauthenticated": "Authentication required.",
   "errUnauthenticatedHint": "Set `FAI_REGISTRY_TOKEN` or sign in through Settings before retrying.",
   "errCopyDetail": "Copy detail",
@@ -1176,7 +1176,7 @@
   "doctorStatusUnknown": "Daemon status: …",
   "doctorPillRunning": "running",
   "doctorPillStopped": "stopped",
-  "doctorDaemonControlHint": "Studio shells out to the platform binary — mirrors `fai daemon …` exactly so the CLI and UI stay in lockstep.",
+  "doctorDaemonControlHint": "Studio shells out to the platform binary — mirrors `chain daemon …` exactly so the CLI and UI stay in lockstep.",
   "doctorDaemonControlWorking": "Working…",
   "doctorPathLog": "Log",
   "doctorPathConfig": "Config",
@@ -1184,7 +1184,7 @@
   "doctorPathModules": "Modules dir",
   "doctorPathFlows": "Flows dir",
   "doctorPathPid": "PID file",
-  "doctorPathsEmpty": "Daemon did not report file paths. Update the running hub via `fai daemon restart`.",
+  "doctorPathsEmpty": "Daemon did not report file paths. Update the running hub via `chain daemon restart`.",
   "doctorOpenError": "Could not open: {detail}",
   "@doctorOpenError": {
     "placeholders": {
@@ -1201,7 +1201,7 @@
       }
     }
   },
-  "doctorUpdateBody": "Channel {channel} now offers {version}. Apply via the button — Studio shells out to `fai update apply --channel {channel}`.",
+  "doctorUpdateBody": "Channel {channel} now offers {version}. Apply via the button — Studio shells out to `chain update apply --channel {channel}`.",
   "@doctorUpdateBody": {
     "placeholders": {
       "channel": {
@@ -1241,7 +1241,7 @@
   "n8nHint": "Active n8n workflows surface as `n8n.<endpoint>.<slug>` capabilities. Configure once, see them in the Store.",
   "n8nEmpty": "No n8n endpoints configured. Click + to add one.",
   "hubUnreachable": "Hub unreachable",
-  "hubUnreachableHint": "Start the hub with `fai serve`.",
+  "hubUnreachableHint": "Start the hub with `chain serve`.",
   "languageEnglish": "English",
   "languageGerman": "Deutsch",
   "searchHint": "Jump anywhere — modules, store, flows, pages…",
@@ -1514,8 +1514,8 @@
   "addSourceField": "URL or path to .fai bundle",
   "addSourceHint": "https://git.flemming.ai/your-org/your-module/releases/download/v0.1.0/foo-0.1.0.fai",
   "addSourceHowItWorksTitle": "How private modules work",
-  "addSourceHowItWorksBody": "A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`fai pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):",
-  "addSourceCliExample": "fai install --link /path/to/module",
+  "addSourceHowItWorksBody": "A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`chain pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):",
+  "addSourceCliExample": "chain install --link /path/to/module",
   "addSourceInstallButton": "Install",
   "addSourceCancel": "Cancel",
   "installFailed": "Install failed: {error}",
@@ -1543,7 +1543,7 @@
     }
   },
   "faiBinaryNotFound": "Could not find the `fai` program on this machine.",
-  "faiBinaryNotFoundHint": "Install the F∆I platform, or point Studio at an existing `fai` binary.",
+  "faiBinaryNotFoundHint": "Install the Ch∆In platform, or point Studio at an existing `fai` binary.",
   "faiBinaryLocateButton": "Locate `fai` binary…",
   "faiBinaryInstallDocsButton": "Open install guide",
   "faiBinaryPickerTitle": "Select the `fai` binary",

lib/l10n/app_localizations.dart

@@ -101,7 +101,7 @@ abstract class AppLocalizations {
   /// App-bar title in the OS task switcher.
   ///
   /// In en, this message translates to:
-  /// **'F∆I Studio'**
+  /// **'Ch∆In Studio'**
   String get appTitle;
 
   /// No description provided for @navWelcome.
@@ -113,7 +113,7 @@ abstract class AppLocalizations {
   /// No description provided for @welcomeHeroTitle.
   ///
   /// In en, this message translates to:
-  /// **'F∆I Platform'**
+  /// **'Ch∆In Platform'**
   String get welcomeHeroTitle;
 
   /// No description provided for @welcomeHeroSubtitle.
@@ -419,7 +419,7 @@ abstract class AppLocalizations {
   /// No description provided for @welcomeChecklistModuleHint.
   ///
   /// In en, this message translates to:
-  /// **'Install a module from the Store — pick whichever category fits your work. Modules are sandboxed F∆I components.'**
+  /// **'Install a module from the Store — pick whichever category fits your work. Modules are sandboxed Ch∆In components.'**
   String get welcomeChecklistModuleHint;
 
   /// No description provided for @welcomeChecklistFlow.
@@ -1445,7 +1445,7 @@ abstract class AppLocalizations {
   /// No description provided for @storeTodayDeck.
   ///
   /// In en, this message translates to:
-  /// **'From the F∆I editor'**
+  /// **'From the Ch∆In editor'**
   String get storeTodayDeck;
 
   /// No description provided for @storeTodayDismissTooltip.
@@ -1991,7 +1991,7 @@ abstract class AppLocalizations {
   /// No description provided for @modulesNoneHint.
   ///
   /// In en, this message translates to:
-  /// **'Run `fai install <capability-name>` or check ~/.fai/modules/.'**
+  /// **'Run `chain install <capability-name>` or check ~/.fai/modules/.'**
   String get modulesNoneHint;
 
   /// No description provided for @modulesReloadTooltip.
@@ -2105,7 +2105,7 @@ abstract class AppLocalizations {
   /// No description provided for @flowsNoneHint.
   ///
   /// In en, this message translates to:
-  /// **'Save a flow with `fai admin flows save <name> <flow.yaml>` and it shows up here.'**
+  /// **'Save a flow with `chain admin flows save <name> <flow.yaml>` and it shows up here.'**
   String get flowsNoneHint;
 
   /// No description provided for @flowsRunDialogTitle.
@@ -2615,7 +2615,7 @@ abstract class AppLocalizations {
   /// No description provided for @welcomeChecklistNextModuleBody.
   ///
   /// In en, this message translates to:
-  /// **'Generate a Rust+WASM scaffold with `fai new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.'**
+  /// **'Generate a Rust+WASM scaffold with `chain new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.'**
   String get welcomeChecklistNextModuleBody;
 
   /// No description provided for @welcomeChecklistNextModuleButton.
@@ -2831,7 +2831,7 @@ abstract class AppLocalizations {
   /// No description provided for @errUnavailableHint.
   ///
   /// In en, this message translates to:
-  /// **'Make sure `fai serve` (or `fai daemon start`) is running and the daemon endpoint matches Studio\'s settings.'**
+  /// **'Make sure `chain serve` (or `chain daemon start`) is running and the daemon endpoint matches Studio\'s settings.'**
   String get errUnavailableHint;
 
   /// No description provided for @errUnauthenticated.
@@ -3305,7 +3305,7 @@ abstract class AppLocalizations {
   /// No description provided for @doctorDaemonControlHint.
   ///
   /// In en, this message translates to:
-  /// **'Studio shells out to the platform binary — mirrors `fai daemon …` exactly so the CLI and UI stay in lockstep.'**
+  /// **'Studio shells out to the platform binary — mirrors `chain daemon …` exactly so the CLI and UI stay in lockstep.'**
   String get doctorDaemonControlHint;
 
   /// No description provided for @doctorDaemonControlWorking.
@@ -3353,7 +3353,7 @@ abstract class AppLocalizations {
   /// No description provided for @doctorPathsEmpty.
   ///
   /// In en, this message translates to:
-  /// **'Daemon did not report file paths. Update the running hub via `fai daemon restart`.'**
+  /// **'Daemon did not report file paths. Update the running hub via `chain daemon restart`.'**
   String get doctorPathsEmpty;
 
   /// No description provided for @doctorOpenError.
@@ -3371,7 +3371,7 @@ abstract class AppLocalizations {
   /// No description provided for @doctorUpdateBody.
   ///
   /// In en, this message translates to:
-  /// **'Channel {channel} now offers {version}. Apply via the button — Studio shells out to `fai update apply --channel {channel}`.'**
+  /// **'Channel {channel} now offers {version}. Apply via the button — Studio shells out to `chain update apply --channel {channel}`.'**
   String doctorUpdateBody(String channel, String version);
 
   /// No description provided for @doctorUpdateUnreachable.
@@ -3467,7 +3467,7 @@ abstract class AppLocalizations {
   /// No description provided for @hubUnreachableHint.
   ///
   /// In en, this message translates to:
-  /// **'Start the hub with `fai serve`.'**
+  /// **'Start the hub with `chain serve`.'**
   String get hubUnreachableHint;
 
   /// No description provided for @languageEnglish.
@@ -4253,13 +4253,13 @@ abstract class AppLocalizations {
   /// No description provided for @addSourceHowItWorksBody.
   ///
   /// In en, this message translates to:
-  /// **'A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`fai pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):'**
+  /// **'A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`chain pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):'**
   String get addSourceHowItWorksBody;
 
   /// No description provided for @addSourceCliExample.
   ///
   /// In en, this message translates to:
-  /// **'fai install --link /path/to/module'**
+  /// **'chain install --link /path/to/module'**
   String get addSourceCliExample;
 
   /// No description provided for @addSourceInstallButton.
@@ -4337,7 +4337,7 @@ abstract class AppLocalizations {
   /// No description provided for @faiBinaryNotFoundHint.
   ///
   /// In en, this message translates to:
-  /// **'Install the F∆I platform, or point Studio at an existing `fai` binary.'**
+  /// **'Install the Ch∆In platform, or point Studio at an existing `fai` binary.'**
   String get faiBinaryNotFoundHint;
 
   /// No description provided for @faiBinaryLocateButton.

lib/l10n/app_localizations_de.dart

@@ -9,13 +9,13 @@ class AppLocalizationsDe extends AppLocalizations {
   AppLocalizationsDe([String locale = 'de']) : super(locale);
 
   @override
-  String get appTitle => 'F∆I Studio';
+  String get appTitle => 'Ch∆In Studio';
 
   @override
   String get navWelcome => 'Willkommen';
 
   @override
-  String get welcomeHeroTitle => 'F∆I Platform';
+  String get welcomeHeroTitle => 'Ch∆In Platform';
 
   @override
   String get welcomeHeroSubtitle =>
@@ -196,7 +196,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get welcomeChecklistModuleHint =>
-      'Im Store ein Modul aus der Kategorie deiner Wahl installieren. Module sind sandboxed F∆I-Komponenten.';
+      'Im Store ein Modul aus der Kategorie deiner Wahl installieren. Module sind sandboxed Ch∆In-Komponenten.';
 
   @override
   String get welcomeChecklistFlow => 'Einen gespeicherten Flow starten';
@@ -775,7 +775,7 @@ class AppLocalizationsDe extends AppLocalizations {
   String get storeTodayBadge => 'HEUTE';
 
   @override
-  String get storeTodayDeck => 'Von der F∆I-Redaktion';
+  String get storeTodayDeck => 'Von der Ch∆In-Redaktion';
 
   @override
   String get storeTodayDismissTooltip => 'Für diese Sitzung ausblenden';
@@ -1125,7 +1125,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get modulesNoneHint =>
-      '`fai install <capability-name>` ausführen oder ~/.fai/modules/ prüfen.';
+      '`chain install <capability-name>` ausführen oder ~/.fai/modules/ prüfen.';
 
   @override
   String get modulesReloadTooltip => 'Aktualisieren';
@@ -1193,7 +1193,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get flowsNoneHint =>
-      'Flow speichern mit `fai admin flows save <name> <flow.yaml>`, dann taucht er hier auf.';
+      'Flow speichern mit `chain admin flows save <name> <flow.yaml>`, dann taucht er hier auf.';
 
   @override
   String flowsRunDialogTitle(String name) {
@@ -1497,7 +1497,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get welcomeChecklistNextModuleBody =>
-      'Mit `fai new module <name>` ein Rust+WASM-Scaffold erzeugen. Das module-sdk übernimmt die WIT-Plumbing; du schreibst nur ein typisiertes invoke.';
+      'Mit `chain new module <name>` ein Rust+WASM-Scaffold erzeugen. Das module-sdk übernimmt die WIT-Plumbing; du schreibst nur ein typisiertes invoke.';
 
   @override
   String get welcomeChecklistNextModuleButton => 'Doku lesen';
@@ -1635,7 +1635,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get errUnavailableHint =>
-      'Sicherstellen, dass `fai serve` (oder `fai daemon start`) läuft und der Daemon-Endpunkt zu Studios Einstellungen passt.';
+      'Sicherstellen, dass `chain serve` (oder `chain daemon start`) läuft und der Daemon-Endpunkt zu Studios Einstellungen passt.';
 
   @override
   String get errUnauthenticated => 'Authentifizierung erforderlich.';
@@ -1918,7 +1918,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get doctorDaemonControlHint =>
-      'Studio ruft das Platform-Binary auf — entspricht `fai daemon …`, sodass CLI und UI im Gleichschritt bleiben.';
+      'Studio ruft das Platform-Binary auf — entspricht `chain daemon …`, sodass CLI und UI im Gleichschritt bleiben.';
 
   @override
   String get doctorDaemonControlWorking => 'Wird ausgeführt…';
@@ -1943,7 +1943,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get doctorPathsEmpty =>
-      'Daemon hat keine Datei-Pfade gemeldet. Hub aktualisieren via `fai daemon restart`.';
+      'Daemon hat keine Datei-Pfade gemeldet. Hub aktualisieren via `chain daemon restart`.';
 
   @override
   String doctorOpenError(String detail) {
@@ -1957,7 +1957,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String doctorUpdateBody(String channel, String version) {
-    return 'Kanal $channel bietet jetzt $version. Per Button anwenden — Studio ruft `fai update apply --channel $channel` auf.';
+    return 'Kanal $channel bietet jetzt $version. Per Button anwenden — Studio ruft `chain update apply --channel $channel` auf.';
   }
 
   @override
@@ -2015,7 +2015,7 @@ class AppLocalizationsDe extends AppLocalizations {
   String get hubUnreachable => 'Hub nicht erreichbar';
 
   @override
-  String get hubUnreachableHint => 'Hub starten mit `fai serve`.';
+  String get hubUnreachableHint => 'Hub starten mit `chain serve`.';
 
   @override
   String get languageEnglish => 'English';
@@ -2487,10 +2487,10 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get addSourceHowItWorksBody =>
-      'Ein Modul ist ein Verzeichnis mit module.yaml + WASM-Artefakt. Zum Teilen: `fai pack <verzeichnis>` baut ein `.fai`-Bundle, das du beliebig hosten kannst (eigene Forgejo / GitHub / S3). Der Hub installiert per URL und prüft die Signatur gegen seinen Trust-Store.\n\nLokal entwickeln? Nimm das CLI — Studio installiert (noch) nicht aus einem unverpackten Verzeichnis:';
+      'Ein Modul ist ein Verzeichnis mit module.yaml + WASM-Artefakt. Zum Teilen: `chain pack <verzeichnis>` baut ein `.fai`-Bundle, das du beliebig hosten kannst (eigene Forgejo / GitHub / S3). Der Hub installiert per URL und prüft die Signatur gegen seinen Trust-Store.\n\nLokal entwickeln? Nimm das CLI — Studio installiert (noch) nicht aus einem unverpackten Verzeichnis:';
 
   @override
-  String get addSourceCliExample => 'fai install --link /pfad/zum/modul';
+  String get addSourceCliExample => 'chain install --link /pfad/zum/modul';
 
   @override
   String get addSourceInstallButton => 'Installieren';
@@ -2540,7 +2540,7 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get faiBinaryNotFoundHint =>
-      'Installiere die F∆I-Plattform oder verweise Studio auf eine vorhandene `fai`-Datei.';
+      'Installiere die Ch∆In-Plattform oder verweise Studio auf eine vorhandene `fai`-Datei.';
 
   @override
   String get faiBinaryLocateButton => '`fai`-Programm suchen …';

lib/l10n/app_localizations_en.dart

@@ -9,13 +9,13 @@ class AppLocalizationsEn extends AppLocalizations {
   AppLocalizationsEn([String locale = 'en']) : super(locale);
 
   @override
-  String get appTitle => 'F∆I Studio';
+  String get appTitle => 'Ch∆In Studio';
 
   @override
   String get navWelcome => 'Welcome';
 
   @override
-  String get welcomeHeroTitle => 'F∆I Platform';
+  String get welcomeHeroTitle => 'Ch∆In Platform';
 
   @override
   String get welcomeHeroSubtitle =>
@@ -195,7 +195,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get welcomeChecklistModuleHint =>
-      'Install a module from the Store — pick whichever category fits your work. Modules are sandboxed F∆I components.';
+      'Install a module from the Store — pick whichever category fits your work. Modules are sandboxed Ch∆In components.';
 
   @override
   String get welcomeChecklistFlow => 'Run a saved flow';
@@ -793,7 +793,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String get storeTodayBadge => 'TODAY';
 
   @override
-  String get storeTodayDeck => 'From the F∆I editor';
+  String get storeTodayDeck => 'From the Ch∆In editor';
 
   @override
   String get storeTodayDismissTooltip => 'Hide for this session';
@@ -1140,7 +1140,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get modulesNoneHint =>
-      'Run `fai install <capability-name>` or check ~/.fai/modules/.';
+      'Run `chain install <capability-name>` or check ~/.fai/modules/.';
 
   @override
   String get modulesReloadTooltip => 'Reload';
@@ -1208,7 +1208,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get flowsNoneHint =>
-      'Save a flow with `fai admin flows save <name> <flow.yaml>` and it shows up here.';
+      'Save a flow with `chain admin flows save <name> <flow.yaml>` and it shows up here.';
 
   @override
   String flowsRunDialogTitle(String name) {
@@ -1508,7 +1508,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get welcomeChecklistNextModuleBody =>
-      'Generate a Rust+WASM scaffold with `fai new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.';
+      'Generate a Rust+WASM scaffold with `chain new module <name>`. The module-sdk handles the WIT plumbing; you write a typed invoke.';
 
   @override
   String get welcomeChecklistNextModuleButton => 'Read the docs';
@@ -1645,7 +1645,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get errUnavailableHint =>
-      'Make sure `fai serve` (or `fai daemon start`) is running and the daemon endpoint matches Studio\'s settings.';
+      'Make sure `chain serve` (or `chain daemon start`) is running and the daemon endpoint matches Studio\'s settings.';
 
   @override
   String get errUnauthenticated => 'Authentication required.';
@@ -1927,7 +1927,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get doctorDaemonControlHint =>
-      'Studio shells out to the platform binary — mirrors `fai daemon …` exactly so the CLI and UI stay in lockstep.';
+      'Studio shells out to the platform binary — mirrors `chain daemon …` exactly so the CLI and UI stay in lockstep.';
 
   @override
   String get doctorDaemonControlWorking => 'Working…';
@@ -1952,7 +1952,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get doctorPathsEmpty =>
-      'Daemon did not report file paths. Update the running hub via `fai daemon restart`.';
+      'Daemon did not report file paths. Update the running hub via `chain daemon restart`.';
 
   @override
   String doctorOpenError(String detail) {
@@ -1966,7 +1966,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String doctorUpdateBody(String channel, String version) {
-    return 'Channel $channel now offers $version. Apply via the button — Studio shells out to `fai update apply --channel $channel`.';
+    return 'Channel $channel now offers $version. Apply via the button — Studio shells out to `chain update apply --channel $channel`.';
   }
 
   @override
@@ -2022,7 +2022,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String get hubUnreachable => 'Hub unreachable';
 
   @override
-  String get hubUnreachableHint => 'Start the hub with `fai serve`.';
+  String get hubUnreachableHint => 'Start the hub with `chain serve`.';
 
   @override
   String get languageEnglish => 'English';
@@ -2491,10 +2491,10 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get addSourceHowItWorksBody =>
-      'A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`fai pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):';
+      'A module is a directory with a module.yaml + the WASM artifact. To share it: pack it (`chain pack <dir>`) and host the resulting `.fai` bundle anywhere (your own Forgejo / GitHub / S3). The hub installs by URL and verifies the signature against its trust store.\n\nDeveloping locally? Use the CLI — Studio cannot install from an unpacked directory (yet):';
 
   @override
-  String get addSourceCliExample => 'fai install --link /path/to/module';
+  String get addSourceCliExample => 'chain install --link /path/to/module';
 
   @override
   String get addSourceInstallButton => 'Install';
@@ -2543,7 +2543,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get faiBinaryNotFoundHint =>
-      'Install the F∆I platform, or point Studio at an existing `fai` binary.';
+      'Install the Ch∆In platform, or point Studio at an existing `fai` binary.';
 
   @override
   String get faiBinaryLocateButton => 'Locate `fai` binary…';