doc: enhance and dedup some build instructions

BUILDING.md

@@ -175,27 +175,6 @@ cp .env.example .env.development
 
 ### Troubleshooting Quick Fixes
 
-#### Common Issues
-
-```bash
-# Clean and rebuild
-npm run clean:all
-npm install
-npm run build:web:dev
-
-# Reset mobile projects
-npm run clean:ios
-npm run clean:android
-npm run build:ios              # Regenerates iOS project
-npm run build:android          # Regenerates Android project
-
-# Fix Android asset issues
-npm run assets:validate:android # Validates and regenerates missing Android assets
-
-# Check environment
-npm run test:web               # Verifies web setup
-```
-
 #### Platform-Specific Issues
 
 - **iOS**: Ensure Xcode and Command Line Tools are installed
@@ -385,14 +364,13 @@ rsync -azvu -e "ssh -i ~/.ssh/..." dist ubuntutest@test.timesafari.app:time-safa
 
 (Note: The test BVC_MEETUPS_PROJECT_CLAIM_ID does not resolve as a URL because it's only in the test DB and the prod redirect won't redirect there.)
 
-- For prod, get on the server and run the correct build:
+- For prod, you can do the same with `build:web:prod` instead.
 
-... and log onto the server:
+... or log onto the server (though the build step can stay on "rendering chunks" for a long while):
 
 - `pkgx +npm sh`
 
-- `cd crowd-funder-for-time-pwa && git checkout master && git pull && git checkout
-1.0.2 && npm install && npm run build:web:prod && cd -`
+- `cd crowd-funder-for-time-pwa && git checkout master && git pull && git checkout 1.0.2 && npm install && npm run build:web:prod && cd -`
 
 (The plain `npm run build:web:prod` uses the .env.production file.)