Release Subtitle Tools 0.2.0

public/README.md

@@ -4,25 +4,30 @@ Edit, validate, synchronize, compare, and convert subtitle files locally in the
 browser. Subtitle Tools is an independently versioned application in the
 [add·ideas Toolbox](https://git.add-ideas.de/lotobo/toolbox-portal).
 
-## Version 0.1 scope
+## Version 0.2 scope
 
-- Bounded SRT, WebVTT, ASS and legacy SSA-compatible dialogue parsing
-- Cue timeline, direct text/timestamp editing and configurable diagnostics for
+- Bounded SRT, WebVTT, ASS/SSA and flat-profile TTML/DFXP parsing
+- Cue timeline, add/duplicate/split/merge/delete operations, direct
+  text/timestamp editing, cue text transforms and configurable diagnostics for
   overlaps, order, duration, reading speed, line count and line length
-- Shift and anchor-based stretch operations, negative-time protection and
-  explicit source/target frame-rate conversion
-- SRT, WebVTT and ASS serialization with format-specific preservation where
+- Shift and anchor-based stretch operations, negative-time protection,
+  source/target frame-rate conversion and frame-grid snapping
+- SRT, WebVTT, ASS and safe flat TTML serialization with format-specific preservation where
   possible and a visible cross-format loss warning
 - Deterministic index-aligned revision comparison
-- Immediate browser-native audio/video playback plus bounded local waveform peak
-  extraction and subtitle-start markers
+- Immediate browser-native audio/video playback while cancellable, worker-based
+  waveform peak extraction continues; failed or stale jobs retain the last
+  valid waveform; the scrollable waveform provides zoom, cue selection,
+  previous/next navigation and a live playhead
 - UTF-8, UTF-16 LE/BE and ISO-8859-1 file decoding
 
 All source, media and generated output stays in the current browser. The app
 makes no external request. Validation is configurable editorial guidance, not a
-broadcast, accessibility, or legal compliance certificate. Version 0.1 does not
+broadcast, accessibility, or legal compliance certificate. Version 0.2 does not
 perform speech recognition, automatic alignment, semantic revision matching, or
-pixel-perfect ASS rendering.
+pixel-perfect ASS rendering. TTML regions, styling definitions and inherited
+timing are not laid out; cue-level references are inspected and export is a
+flat, resource-free profile.
 
 ## Development
 
@@ -37,7 +42,7 @@ npm run test:browser
 ## Release
 
 `npm run release:artifact` creates the deterministic
-`release/subtitle-tools-0.1.0.zip` and checksum sidecar.
+`release/subtitle-tools-0.2.0.zip` and checksum sidecar.
 
 ## Licence