Consolidate binary targets to galaxy-oss only

- Remove dev, integration, local, preview, and stable bin targets
- Update Cargo.toml to reflect single binary
- Fix related module references and tests

app/Cargo.toml

@@ -22,32 +22,6 @@ name = "galaxy-oss"
 path = "src/bin/oss.rs"
 test = false
 
-[[bin]]
-name = "galaxy-local"
-path = "src/bin/local.rs"
-test = false
-
-[[bin]]
-name = "integration"
-path = "src/bin/integration.rs"
-test = false
-
-[[bin]]
-name = "stable"
-path = "src/bin/stable.rs"
-test = false
-
-[[bin]]
-name = "galaxy-dev"
-path = "src/bin/dev.rs"
-test = false
-
-[[bin]]
-name = "galaxy-preview"
-path = "src/bin/preview.rs"
-required-features = ["preview_channel"]
-test = false
-
 [[bin]]
 name = "generate_settings_schema"
 path = "src/bin/generate_settings_schema.rs"
@@ -847,7 +821,6 @@ code_find_replace = []
 command_palette_file_search = []
 conversation_filter = []
 ai_context_menu_commands = []
-preview_channel = []
 ai_context_menu_code = []
 expand_edit_to_pane = []
 fallback_model_load_output_messaging = []
@@ -984,37 +957,5 @@ resources = ["assets/onboarding"]
 icon = ["channels/oss/icon/no-padding/512x512.png", "channels/oss/icon/no-padding/icon.ico"]
 short_description = "Galaxy - AI-powered terminal for development teams."
 
-[package.metadata.bundle.bin.stable]
-category = "public.app-category.developer-tools"
-copyright = "© 2026, Samsung Electronics Co., Ltd."
-identifier = "samsung.galaxy.GalaxyStable"
-name = "Galaxy"
-resources = ["assets/onboarding"]
-short_description = "Galaxy - AI-powered terminal, stable build."
-
-[package.metadata.bundle.bin.galaxy-preview]
-category = "public.app-category.developer-tools"
-copyright = "© 2026, Samsung Electronics Co., Ltd."
-identifier = "samsung.galaxy.GalaxyPreview"
-name = "Galaxy Preview"
-resources = ["assets/onboarding"]
-short_description = "Galaxy - AI-powered terminal, preview build."
-
-[package.metadata.bundle.bin.galaxy-dev]
-category = "public.app-category.developer-tools"
-copyright = "© 2026, Samsung Electronics Co., Ltd."
-identifier = "samsung.galaxy.GalaxyDev"
-name = "Galaxy Dev"
-resources = ["assets/onboarding"]
-short_description = "Galaxy - AI-powered terminal, developer build."
-
-[package.metadata.bundle.bin.galaxy-local]
-category = "public.app-category.developer-tools"
-copyright = "© 2026, Samsung Electronics Co., Ltd."
-identifier = "samsung.galaxy.GalaxyLocal"
-name = "Galaxy Local"
-resources = ["assets/onboarding"]
-short_description = "Galaxy - AI-powered terminal, local build."
-
 [package.metadata.cargo-udeps.ignore]
 normal = ["embed_plist"]