display issues: reverse namespace + missing logo fallback #5

problems#

1. reverse namespace display#

apps are shown as app.bsky instead of bsky.app, which is confusing for users who know these services by their normal domain reading order.

location: static/app.js:201

2. missing logo fallback system#

when logo discovery fails (no bluesky account, no avatar, etc.), we fall back to a generic first-letter circle. many well-known apps could have static logos.

current discovery:

1. reverse namespace to domain
2. try as bluesky handle
3. try with .bsky.social suffix
4. fetch profile avatar
5. fallback: first letter in circle

fails for:

• apps without bluesky accounts
• accounts without avatars
• handles that don't match namespace

impact#

• confusing for non-technical users
• looks incomplete/unprofessional when many apps show generic circles
• harder to visually identify familiar apps

examples from screenshot#

• app.bsky should be bsky.app or bluesky
• app.mcp should be mcp or have a proper logo
• stream.thought, blue.2048, etc. could have better display names