docs: settle every remaining row, and add the third occupancy mode

The last structural gap from task 05 was the third occupancy mode. It is
passive: the resource is genuinely held — nobody else can take that room while
the patient waits for the anaesthetic — but the time is not work done. It
blocks exactly like exclusive; the difference is in the report, where without
it a room that spends half its day waiting reads as fully utilised. The mode is
validated, offered in the segment editor and carried through to the plan.

Everything else that was still marked as a deviation is now recorded in
docs/architecture/deviations.md, one row each, in the form "what the plan said
/ what was built / why". That includes the ones I would defend (five plan
services collapsed into one builder that only build() calls; a Skill foreign
key instead of a JSON array, because a deleted skill in JSON fails silently)
and the ones that are simply facts about the product (service_option does not
exist here, so a column for it would sit empty until someone read it as a bug).

The i18n section says plainly that the product is single-language and describes
the order to migrate in if that changes — a translation layer with one language
is an indirection, not an abstraction.

All sixteen checklists now read zero pending and zero unresolved.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/Appointment/Plan/Entity/SegmentRequirement.php

@@ -24,7 +24,20 @@ class SegmentRequirement
     /** منبع لازم است ولی می‌تواند هم‌زمان جای دیگری هم باشد (ظرفیتش می‌شمارد). */
     public const OCCUPANCY_SHARED = 'shared';
 
-    public const OCCUPANCIES = [self::OCCUPANCY_EXCLUSIVE, self::OCCUPANCY_SHARED];
+    /**
+     * منبع **رزرو** است ولی کارِ فعالی روی آن انجام نمی‌شود.
+     *
+     * اتاقی که بیمار در آن منتظر اثر بی‌حسی است، واقعاً اشغال است — کس دیگری نمی‌تواند
+     * آن را بگیرد — ولی آن نیم‌ساعت «کارِ انجام‌شده» نیست. تفاوتش با `exclusive` در
+     * جلوگیری از رزرو **نیست** (هر دو یکسان بلوکه می‌کنند)، در **گزارش** است: بدون این،
+     * بهره‌وری اتاقی که نصف وقتش انتظار است، صد درصد نشان داده می‌شود.
+     */
+    public const OCCUPANCY_PASSIVE = 'passive';
+
+    public const OCCUPANCIES = [self::OCCUPANCY_EXCLUSIVE, self::OCCUPANCY_SHARED, self::OCCUPANCY_PASSIVE];
+
+    /** حالت‌هایی که منبع را واقعاً قفل می‌کنند (در برابر `shared` که فقط ظرفیت می‌خورد). */
+    public const BLOCKING_OCCUPANCIES = [self::OCCUPANCY_EXCLUSIVE, self::OCCUPANCY_PASSIVE];
 
     /** جنسیت منبع باید با بیمار یکی باشد — بند ۱۰ مستند. */
     public const CONSTRAINT_SAME_GENDER = 'same_gender_as_patient';