feat: поддержка импорта BOM Inspur в формате PN*qty

Добавлен парсер для текстового формата Inspur (опциональный '|' в начале
строки, разделитель '*' перед количеством). На BOM-вкладке вставка такого
текста автоматически определяется и разбивается на колонки P/N + Qty без
ручного выбора типов. На бэкенде тот же формат поддерживается через
POST /api/projects/:uuid/vendor-import.

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

bible-local/09-vendor-spec.md

@@ -62,3 +62,21 @@ Imported configuration fields:
 - `article` or `support_code` from `ProprietaryProductIdentifier`
 
 Imported BOM rows become `vendor_spec` rows and are resolved through the active local partnumber book when possible.
+
+## Inspur BOM import
+
+The same endpoint `POST /api/projects/:uuid/vendor-import` also accepts Inspur text BOM exports.
+
+Format: one component per line, `<partnumber>*<quantity>`. A leading `|` character is optional and stripped. Trailing whitespace around `*` is normalised.
+
+Example:
+```
+|CPU_AMD_9535-EPYC2.4_64C_256M_300W*1
+|PowerSupply_1300W_Titanium_220VACor240VDC_GaN*2
+```
+
+Rules:
+- the entire file becomes a single configuration (`server_count = 1`);
+- configuration `name` is derived from the uploaded filename (without extension);
+- lines that do not contain `*<digits>` are skipped;
+- no price data is present in the format; `unit_price` and `total_price` are left nil.