Add more OpenRouter branding

[alexanderatallah]

This pull request updates the application's branding from "Chorus" to "OpenRouter Chorus" across the codebase, configuration files, scripts, and user-facing content. It also updates all internal identifiers, file paths, and URLs to reflect the new name and domain. Additionally, new Android icon resources are added for various build environments.

Branding and identifier updates:

• Updated product name, window titles, and identifiers in all Tauri configuration files (src-tauri/tauri.conf.json, src-tauri/tauri.dev.conf.json, src-tauri/tauri.qa.conf.json) from "Chorus" and sh.chorus.app to "OpenRouter Chorus" and ai.openrouter.desktop, including deep-link scheme changes. [1] [2] [3] [4] [5] [6] [7] [8] [9]
• Changed all script references, backup/restore instructions, and instance directory paths in shell scripts to use "OpenRouter Chorus" and the new identifier (ai.openrouter.desktop). [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]

Domain and support contact updates:

• Updated all references to the old domain (chorus.sh) and support email to the new domain (openrouter.ai) and support address in API headers, prompts, and user messages. [1] [2] [3] [4] [5]

User interface and documentation:

• Changed the app title in index.html and updated user-facing messages to reflect the new branding. [1] [2]

Android icon resources:

• Added adaptive icon XML files and launcher background color resources for Android builds in dev, QA, and production environments. [1] [2]

These changes ensure the application is consistently branded and referenced as "OpenRouter Chorus" throughout all environments and touchpoints.

[greptile-apps]

Skipped: This PR changes more files than the configured file change limit: (179 files found, 100 file limit)