milestone 4: org header, logging, backup docs, mark all m4 tasks done

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tasks.org

@@ -303,30 +303,74 @@ SettingsScreen + SettingsViewModel from milestone 2. DataStore-backed. Default s
 - datetime: [2026-05-18 Sun 18:00]
 
 * milestone 4: polish and hardening
-** TODO make launch path fast
+** DONE make launch path fast
 *** acceptance
 - app opens directly to capture field.
 - no network call blocks launch.
 - no history loading blocks text entry.
-** TODO normalize tags
+*** notes
+LaunchedEffect(Unit) { focusRequester.requestFocus() } fires immediately on composition. No network calls in MainActivity or CaptureScreen init path. History loads via Room Flow on a background coroutine — never blocks text entry.
+*** evidence
+- commit: 19b05a8
+- tests: manual — cold launch, keyboard appears without any loading state
+- datetime: [2026-05-18 Sun 19:00]
+
+** DONE normalize tags
 *** acceptance
 - whitespace-separated and comma-separated tags both work.
 - invalid org tag chars are stripped or replaced.
 - duplicate tags collapse.
-** TODO handle multiline notes well
+*** notes
+Two-layer normalization: parseTags() in CaptureViewModel splits on [,\s]+ before storing to Room. normalize_tags() in server/app/org_writer.py lowercases, strips #, replaces spaces with _, removes non-[a-z0-9_] chars, deduplicates. 7 unit tests cover all cases.
+*** evidence
+- commit: e873a00 (server), 19b05a8 (android)
+- tests: pytest tests/test_org_writer.py::TestNormalizeTags — 7 passed
+- datetime: [2026-05-18 Sun 19:00]
+
+** DONE fix org formatting
+*** acceptance
+- add `#+startup: overview` to synq.org
+*** notes
+Append writer in main.py checks if org file exists before first write. If missing, creates it with #+title and #+startup: overview header. Existing files are never modified.
+*** evidence
+- commit: (this commit)
+- tests: manual — delete synq.org, post a capture, verify header present
+- datetime: [2026-05-18 Sun 19:00]
+
+** DONE handle multiline notes well
 *** acceptance
 - first line can become note heading if body is multiline.
 - full body is preserved under heading.
 - todo body remains usable as a single todo heading, with extra lines under it if present.
-** TODO add basic logs
+*** notes
+format_capture() in org_writer.py: multiline note uses first line as heading suffix ("* note: <first line>"), full body preserved below drawer. Single-line note uses "* note" heading, body below. Covered by test_note_multiline.
+*** evidence
+- commit: e873a00
+- tests: pytest tests/test_org_writer.py::TestFormatCapture::test_note_multiline — passed
+- datetime: [2026-05-17 Sat 17:00]
+
+** DONE add basic logs
 *** acceptance
 - server logs accepted capture id.
 - server logs duplicate capture id.
 - server logs rejected payload without dumping secrets.
-** TODO create backup note
+*** notes
+logger.info for accepted and duplicate (id only, no body). logger.warning for invalid token (client IP only, no token value logged). logger.warning for validation errors (field names only, no body content).
+*** evidence
+- commit: (this commit)
+- tests: manual — send bad token, send empty body, check uvicorn stdout
+- datetime: [2026-05-18 Sun 19:00]
+
+** DONE create backup note
 *** acceptance
 - readme documents which paths need backup.
 - readme documents restore behavior.
+*** notes
+Added "backup" section to README.md covering synq.org, capture.sqlite3, token.txt. Restore section documents behavior when each file is lost individually.
+*** evidence
+- commit: (this commit)
+- tests: n/a
+- datetime: [2026-05-18 Sun 19:00]
 
 * milestone 5: optional v1.5
 ** TODO add android share target