Doc audit: fix stale test count, project layout, and removed --quiet flag

A sweep across the repo to align docs with the actual current state after
the recent refactors (mode-based exports, FS-aware path decoding, lazy
install prompt). Caught:

- README.md / README.ru.md: 'Test coverage 91% (68/68)' → 73/73. Project
  layout listing was missing conftest.py, test_real_format.py, and
  test_minimal.py — three real files that hold most of the format-handling
  test surface.

- QUICKSTART.md: the (Optional) daily auto-backup snippets referenced a
  '--quiet' flag that was never implemented. Replaced with shell '>/dev/null'
  redirection, which is the actual idiomatic way to silence the script in
  cron / shell functions.

- parser.py: docstring on dialogue_text() said 'Used by --minimal export
  mode'. That flag was renamed to '--mode minimal' two commits ago.

No code changes; docs and one docstring.

Author: sedelev

QUICKSTART.md

@@ -221,7 +221,7 @@ Add to your shell profile (`~/.zshrc`, `~/.bashrc`, or `~/.bash_profile`):
 cb_backup() {
     local dest="$HOME/claude-backups"
     mkdir -p "$dest"
-    claude-backup export-all --output "$dest" --quiet
+    claude-backup export-all --output "$dest" >/dev/null
     cd "$dest" && git add . && git commit -m "backup $(date +%F)" 2>/dev/null
 }
 cb_backup
@@ -231,7 +231,7 @@ Or use cron (macOS / Linux):
 ```bash
 crontab -e
 # Add: daily at 9 PM
-0 21 * * * /usr/local/bin/claude-backup export-all --output $HOME/claude-backups/ --quiet
+0 21 * * * /usr/local/bin/claude-backup export-all --output $HOME/claude-backups/ >/dev/null 2>&1
 ```
 
 ---

README.md

@@ -234,24 +234,27 @@ pytest -v --cov=claude_backup
 
 CI runs on Python 3.9, 3.10, 3.11, and 3.12 — see [.github/workflows/test.yml](.github/workflows/test.yml).
 
-**Test coverage: 91%** (68/68 tests passing) — covers the real Claude Code format, the legacy spec format, edge cases (empty/corrupt JSONL, unicode, missing index), `--mode` selection (both / minimal / full), and CLI integration.
+**Test coverage: 91%** (73/73 tests passing) — covers the real Claude Code format, the legacy spec format, edge cases (empty/corrupt JSONL, unicode, missing index), `--mode` selection (both / minimal / full), the FS-aware project-path decoder, and CLI integration.
 
 ### Project layout
 
 ```
 claude_backup/
 ├── __init__.py
-├── cli.py          # Click entry point
-├── scanner.py      # Discovers projects + sessions
-├── parser.py       # Reads .jsonl files
-└── exporter.py     # Renders Markdown
+├── cli.py             # Click entry point
+├── scanner.py         # Discovers projects + sessions, decodes project paths
+├── parser.py          # Reads .jsonl files
+└── exporter.py        # Renders Markdown (both modes)
 
 tests/
-├── fixtures/       # Fake project data — no real ~/.claude/ data is read in tests
+├── conftest.py        # Shared fixtures (claude_home etc.)
+├── fixtures/          # Fake project data — no real ~/.claude/ is read in tests
 ├── test_scanner.py
 ├── test_parser.py
 ├── test_exporter.py
-└── test_cli.py
+├── test_cli.py
+├── test_minimal.py    # Dialogue-only mode + --mode CLI flag
+└── test_real_format.py  # Nested message shape, ai-title, project-path decoding
 ```
 
 ---

README.ru.md

@@ -231,24 +231,27 @@ pytest -v --cov=claude_backup
 
 CI запускается на Python 3.9, 3.10, 3.11 и 3.12 — см. [.github/workflows/test.yml](.github/workflows/test.yml).
 
-**Покрытие тестами: 91%** (68/68 тестов проходят) — реальный формат Claude Code, legacy-формат из спеки, edge-кейсы (пустой/битый JSONL, unicode, отсутствующий индекс), выбор `--mode` (both / minimal / full), и интеграционные тесты CLI.
+**Покрытие тестами: 91%** (73/73 тестов проходят) — реальный формат Claude Code, legacy-формат из спеки, edge-кейсы (пустой/битый JSONL, unicode, отсутствующий индекс), выбор `--mode` (both / minimal / full), FS-aware декодинг путей проектов, и интеграционные тесты CLI.
 
 ### Структура проекта
 
 ```
 claude_backup/
 ├── __init__.py
-├── cli.py          # Точка входа Click
-├── scanner.py      # Обнаружение проектов и сессий
-├── parser.py       # Чтение .jsonl
-└── exporter.py     # Рендеринг Markdown
+├── cli.py             # Точка входа Click
+├── scanner.py         # Обнаружение проектов и сессий, декодинг путей
+├── parser.py          # Чтение .jsonl
+└── exporter.py        # Рендеринг Markdown (оба режима)
 
 tests/
-├── fixtures/       # Фейковые данные — реальные ~/.claude/ не читаются в тестах
+├── conftest.py        # Общие фикстуры (claude_home и т.п.)
+├── fixtures/          # Фейковые данные — реальные ~/.claude/ не читаются в тестах
 ├── test_scanner.py
 ├── test_parser.py
 ├── test_exporter.py
-└── test_cli.py
+├── test_cli.py
+├── test_minimal.py    # Dialogue-only режим + CLI флаг --mode
+└── test_real_format.py  # Вложенный формат message, ai-title, декодинг путей
 ```
 
 ---

claude_backup/parser.py

@@ -183,7 +183,8 @@ def _normalize_content(content) -> str:
 
 def dialogue_text(msg: "Message") -> str:
     """Extract only human-facing text from a message: no tool_use, no tool_result,
-    no thinking, no images. Used by `--minimal` export mode."""
+    no thinking, no images. Used by the dialogue-only render path (`--mode minimal`
+    and the default `<id>.md` half of `--mode both`)."""
     nested = msg.raw.get("message") if isinstance(msg.raw, dict) else None
     raw = nested if isinstance(nested, dict) else msg.raw
     content = raw.get("content") if isinstance(raw, dict) else None