v1.4.0 — flat-key build.properties (IDE-friendly)

Changed (non-breaking — both formats still parse)

• build.properties switched from INI sections to flat keys. Every
  field is now a globally unique key (e.g. builder.j5.role,
  paths.cwm/sibling) so Java-properties-aware IDEs (PhpStorm,
  IntelliJ) don't flag "duplicate property key" warnings on role,
  path, db_host, etc. across sections. Same content, same semantics,
  zero IDE noise.

  New canonical shape:

  joomla.version = 5.4.2
  builder.installs = j5, j6, j5-test
  
  builder.j5.role        = dev
  builder.j5.path        = /path/to/joomla5
  builder.j5.url         = https://j5-dev.local
  builder.j5.version     = 5.4.2
  builder.j5.db_host     = localhost
  builder.j5.admin_email = admin@example.com
  # ... etc
  
  builder.j5-test.role = test
  builder.j5-test.path = /path/to/joomla5-test
  
  paths.joomla-bible-study/lib-cwmscripture = /Users/you/GitHub/lib_cwmscripture

• Comment marker switched from ; to # to satisfy Java-properties
  parsers too. PHP's parse_ini_string accepts both via
  PropertiesReader's pre-strip step.

Internal

• PropertiesReader::fromLegacyFlat() renamed to fromFlat() (with the
  old name retained as a private alias for any external caller still
  using it). The "flat" format is the canonical v1.4 shape, not legacy.
  • Extended to honor explicit builder.installs = ... lists.
  • Auto-discovers ids from builder.<id>.path keys (preferred) before
    falling back to builder.<id>.url (Proclaim legacy).
  • Parses builder.<id>.role, builder.<id>.version, and modern
    admin_user/pass/email key names alongside Proclaim's legacy
    username/password/email.
• PropertiesReader::paths() now reads flat paths.<package> keys
  (preferred). Still falls back to the [paths] INI section for any
  existing v1.2/v1.3 files.
• PropertiesReader::write() and writePaths() now emit flat keys.
• PropertiesReader::fromSections() retained as a reader-only path for
  backward compatibility with any developer's existing INI-style
  build.properties from v1.0–v1.3. Next composer setup rewrites
  the file in the new flat shape.

Migration

Per consumer:

1. composer require --dev cwm/build-tools:^1.4
2. composer cwm-sync-configs refreshes build.dist.properties to
   the new flat-key template.
3. Developers with an existing INI build.properties keep working
   thanks to fromSections() backward-compat. Running composer setup will migrate the file to the flat shape on next save.