fix(ink-compat): parse ANSI SGR emitted by Transform

[RtlZeroMemory]

Summary

• parse ANSI CSI/SGR sequences after output is applied
• avoid leaking literal color fragments like in rendered text
• add regression test for returning ANSI-encoded string

Why

and similar components can emit ANSI from . Previously only plain text node paths parsed ANSI; transform output could bypass parsing and render raw bracket fragments.

Local validation

• TAP version 13

Subtest:

# Subtest: applies transform to flattened text (best-effort)
ok 1 - applies transform to flattened text (best-effort)
  ---
  duration_ms: 3.708994
  ...
# Subtest: transform sees per-line index
ok 2 - transform sees per-line index
  ---
  duration_ms: 0.648031
  ...
# Subtest: transform ANSI SGR output is parsed into styled text
ok 3 - transform ANSI SGR output is parsed into styled text
  ---
  duration_ms: 0.755791
  ...
1..3

ok 1 -

duration_ms: 5.715668
type: 'suite'
...
1..1

tests 3

suites 1

pass 3

fail 0

cancelled 0

skipped 0

todo 0

duration_ms 138.176205

• TAP version 13

Subtest: reconciler: host tree -> Rezi VNode

# Subtest: <Text> renders ui.text with style
ok 1 - <Text> renders ui.text with style
  ---
  duration_ms: 3.924426
  ...
# Subtest: nested <Text> produces richText spans
ok 2 - nested <Text> produces richText spans
  ---
  duration_ms: 0.585781
  ...
# Subtest: <Text> parses ANSI SGR color sequences into richText spans
ok 3 - <Text> parses ANSI SGR color sequences into richText spans
  ---
  duration_ms: 0.423741
  ...
# Subtest: <Text> supports ANSI 256-color foreground (38;5;n)
ok 4 - <Text> supports ANSI 256-color foreground (38;5;n)
  ---
  duration_ms: 0.25309
  ...
# Subtest: <Box flexDirection> maps to ui.row/ui.column
ok 5 - <Box flexDirection> maps to ui.row/ui.column
  ---
  duration_ms: 0.690211
  ...
# Subtest: <Box borderStyle> wraps stack in ui.box
ok 6 - <Box borderStyle> wraps stack in ui.box
  ---
  duration_ms: 0.291441
  ...
# Subtest: <Spacer> maps to ui.spacer({flex:1})
ok 7 - <Spacer> maps to ui.spacer({flex:1})
  ---
  duration_ms: 0.43037
  ...
1..7

ok 1 - reconciler: host tree -> Rezi VNode

duration_ms: 7.242401
type: 'suite'
...
1..1

tests 7

suites 1

pass 7

fail 0

cancelled 0

skipped 0

todo 0

duration_ms 148.918177

• Manual Gemini smoke using local patched dist overlay: startup rendered proper ANSI-colored banner (no literal artifacts)