docs(architecture): update SysDes, SDD, SAD with missing modules and SysRS allocations (TODO-028,034,035)

SysDes: add SysRS-310 allocation, update coverage statement.
SDD: add SDD-MOD-015/016/017 for resolver/prefetch/cache, update engine split.
SAD: add Cache component to architecture table and diagram.

docs/sysdes.md

@@ -2937,7 +2937,7 @@ This SysDes version covers all known SysRS requirements from `SysRS-001` through
 - Verification method: Review, Platform Test (macOS), Release Inspection
 - Verification owner: macOS Owner / Release Manager
 - ASPICE SYS.3 alignment: Static architecture, architecture constraints, element allocation, consistency
-- Allocated SysRS: SysRS-002, SysRS-050, SysRS-193
+- Allocated SysRS: SysRS-002, SysRS-050, SysRS-193, SysRS-310
 - Notes: Parallel in role to SysDes-133 (iOS runtime baseline) and SysDes-135 (Android runtime baseline); neither SysDes-133 nor SysDes-135 is modified by this item. Source SysRS selection: SysRS-002 anchors the multi-platform obligation that explicitly enumerates macOS as a target client platform, SysRS-050 anchors the macOS runtime environment obligation for native desktop integration, and SysRS-193 anchors the signed/notarized macOS build obligation that the `.framework` `Versions/A` layout and universal-binary policy must satisfy in the release pipeline. No macOS-specific deployment-target or universal-binary SysRS item currently exists; if a finer-grained macOS minimum-runtime SysRS item is required (analogous to SysRS-286 for iOS and SysRS-288 for Android), the systems-requirements owner should consider authoring it in a follow-up — this SysDes item is structured so that such a future SysRS item can be added to `Allocated SysRS` without restructuring the element. SysDes-155 cites the podspec file path only and does not embed its current deployment-target value; the value itself remains owned by the Build Configuration subsystem.
 
 **SysDes-156**: The system architecture shall allocate to SE-13 (Audio Subsystem) the obligation to expose its realtime capture and playback paths to benchmark instrumentation, such that the maintained numeric performance baselines authorized by SysRS-307 are measurable as a deterministic, automated comparison surface. The metric set authored at this layer is: (i) **heap allocation count per realtime callback after warmup** — zero allocations are expected on the steady-state realtime audio thread, where warmup is defined as the first N callbacks with N implementation-specific (recommended N=100 callbacks; refined at SDD); (ii) **per-callback wall-clock time expressed as a fraction of the cpal stream's reported audio frame period**, captured and reported as p50, p95, and p99 of the callback wall-clock as a fraction of that period; (iii) **Opus encode latency** — end-to-end wall-clock time for `encoder.encode_float()` on a 960-sample (20 ms) frame, captured per call; (iv) **Opus decode latency** — same shape, decoder side; (v) **resampler throughput** in samples-per-second produced at the canonical rate pairs 44.1 kHz → 48 kHz, 16 kHz → 48 kHz, and 48 kHz → 48 kHz passthrough (the passthrough pair serves as a control point). The baseline storage format is declared at this layer as structured JSON committed to a deterministic location in the repository; the exact path is delegated to SDD. Each JSON record shall include the metric value, the host architecture, the toolchain version, the git SHA of the measurement, and a timestamp, so that a baseline snapshot is reproducible and traceable to the commit that produced it. This SysDes item does not authorize off-device transmission of any measured baseline data and is consistent with SysRS-295.
@@ -2991,7 +2991,7 @@ The **comparison methodology** authored at this layer is: each PR-triggered benc
 
 ## 17. Updated SysRS Coverage Statement
 
-This SysDes version covers all known SysRS requirements from `SysRS-001` through `SysRS-309`.
+This SysDes version covers all known SysRS requirements from `SysRS-001` through `SysRS-310`.
 
 | SysRS Range | SysDes Coverage |
 |---|---|
@@ -3002,6 +3002,7 @@ This SysDes version covers all known SysRS requirements from `SysRS-001` through
 | SysRS-305 through SysRS-306 | Covered by `SysDes-152` through `SysDes-154` (with SysDes-154 additionally refining SysRS-055 for the Android voice audio backend) |
 | SysRS-002 / SysRS-050 / SysRS-193 (macOS platform-baseline slice) | Additionally refined by `SysDes-155` (macOS runtime baseline, parallel to SysDes-133 / SysDes-135) |
 | SysRS-307 through SysRS-309 (realtime-audio benchmark infrastructure) | Covered by `SysDes-156` (audio benchmark surface, SE-13), `SysDes-157` (advisory CI integration, SE-18), and `SysDes-158` (per-metric tolerance window and comparison methodology, SE-18) |
+| SysRS-310 (macOS minimum runtime baseline) | Covered by `SysDes-155` allocation (macOS deployment target policy)
 
 
 ## Baseline Candidate 0.9.1 Update