auto_l10n

• Fixed remaining pub analysis warning in CLI AST visitor by suppressing deprecated analyzer member usage in a lower-bound compatible way.

• Fixed pub points loss in static analysis: updated bin/generate.dart to satisfy curly_braces_in_flow_control_structures (no behavioral changes).
• Fixed pub dependency score warning by widening analyzer constraint to >=7.7.1 <11.0.0.

• Added layoutPolicy to autoL10n() / AutoL10nBinding.ensureInitialized():
  • AutoL10nLayoutPolicy.off
  • AutoL10nLayoutPolicy.safeFallback
  • AutoL10nLayoutPolicy.safeEllipsisCurrent
• Added layout-safe runtime handling for tight horizontal Row/Flex labels:
  • optional fallback to source text
  • optional translated ellipsis trimming (...) in conservative mode
• Runtime bootstrap made deterministic: SharedPreferences cache -> ARB preload -> API fallback.
• ARB-only mode no longer uses NoOpTranslator in runtime pipeline; API queue/flush is skipped when no translator is configured.
• Unified cache key namespace by language: auto_l10n_<lang> (instead of translator-scoped keys).
• Runtime cache no longer stores unchanged entries (translated == original).
• Runtime translation patching now also handles Text.textSpan (in addition to Text.data and RichText).
• Runtime lookup improved for case/whitespace mismatches (case-insensitive matching with preserved case pattern and trimmed lookup with preserved outer whitespace).
• Retry behavior for failed API batches: up to 3 retry attempts, then stop until new input arrives.
• DeepL XML mode fixes: safe XML escaping around placeholders and entity decode after translation.
• CLI extraction upgraded to AST-first scanning and expanded to capture real-world UI patterns.
• CLI now captures fallback literals in mixed expressions (e.g. ternary with one non-literal branch).
• CLI now captures string arguments from mixed-signature calls (e.g. string + enum arguments in one call).
• CLI now resolves const references (including qualified static const values) when extracting strings.
• CLI keys are normalized with trim by default (cleaner ARB keys).
• README updated with layout policy documentation and usage examples.

fix: remove env.dart import from default example scenario

• Generate CLI (dart run auto_l10n): from-code (scan Text('...') / Text("...")) or from-arb; optional --service (deepl, google, mymemory, lingva, mock) with --api-key for deepl/google. Output to assets/auto_l10n by default.
• Pre-generated ARB only: autoL10n() with no provider loads from translationsPath (default assets/auto_l10n); no API key required.
• Pre-generated + API: autoL10n(provider: ..., apiKey: ...) loads ARB first, translates missing strings via API.
• API only: autoL10n(provider: ..., loadPregenerated: false).
• autoL10n() top-level helper; translationsPath and loadPregenerated parameters on binding.
• TranslationCache: optional preloaded map; addPreloaded() for async ARB load and persist.
• NoOpTranslator when only pre-generated ARB is used.
• RichText widgets are now patched and restored: translated text is shown in RichText / nested TextSpans, not only in Text.
• Example app: user-generated content (text field → translated output), locale picker (device locale on launch with fallback to en), in-app copy about API key vs free providers, pre-generated ARB.

• Initial release.
• Runtime translation for Flutter Text and RichText via AutoL10nBinding.
• Built-in providers: DeepL, MyMemory, Lingva, Google Translate, Mock.
• Optional targetLocale (defaults to device locale).
• Custom translators via AbstractTranslator.
• Per-language cache in memory and SharedPreferences.
• Static ARB generation: dart run auto_l10n:generate.