Extension 0.6.0: next-edit, token healing, TS errors context, cursor-move, prewarm

- shared/nextedit.ts: next-edit prompt format (region rewrite or NO_EDIT, Qwen spare special tokens)
- shared/diagnostics.ts: TS errors near the cursor as context; symbols format 2 adds namespace imports
- shared/prompt.ts: token healing (cut the half-typed word, force it via grammar), errors header section
- daemon: model profiles carry contextFormat/errors/members/nextEdit; /v1/next-edit with edit-burst
  tracking; /v1/prewarm; /v1/debug/last; token healing on by default
- extension: next-edit decorations (Tab apply / Esc dismiss), suggest on cursor move, prewarm on focus,
  Show Last Prompt, update check against releases, diagnostics in the edit recorder
- models/README: training-data attribution; release script profiles for stage-d/stage-e
- .gitea/workflows/ci.yml: build + test, publish release on vscode-v* tags (needs a runner + RELEASE_TOKEN)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J39imRDT8L7xYbWzsVWd8A

extensions/vscode/test/logic.test.mjs

@@ -36,3 +36,28 @@ test('status text', () => {
   assert.match(statusText({ enabled: true, mode: 'symbols', effectiveMode: 'simple', model: 'stage-c' }, 41.6), /symbols→simple · 42 ms/)
   assert.match(statusText(null, null), /no daemon/)
 })
+
+import { lineBlockDiff, charDiff, insertionMakesSense, newerVersion } from '../dist/logic.js'
+
+test('leftover paren is a one-character deletion', () => {
+  const d = charDiff('const v = fromString(someString))', 'const v = fromString(someString)')
+  assert.deepEqual(d, { start: 32, deleteEnd: 33, insert: '' })
+})
+
+test('line block diff finds the changed lines', () => {
+  const d = lineBlockDiff('a\nb\nc\nd\n', 'a\nB\nB2\nd\n')
+  assert.deepEqual(d, { oldStart: 1, oldEnd: 3, oldLines: ['b', 'c'], newLines: ['B', 'B2'] })
+  assert.equal(lineBlockDiff('x\n', 'x\n'), null)
+})
+
+test('cursor-move gate', () => {
+  assert.equal(insertionMakesSense('    ', 4, false), true)
+  assert.equal(insertionMakesSense('  foo()', 7, false), true)
+  assert.equal(insertionMakesSense('  foo()', 3, false), false)
+  assert.equal(insertionMakesSense('  foo()', 3, true), true)
+})
+
+test('version comparison', () => {
+  assert.equal(newerVersion('0.10.0', '0.9.3'), true)
+  assert.equal(newerVersion('0.5.0', '0.5.0'), false)
+})