auto(docs): W23 changelog roll, 3 example stubs, STATUS regen

Autonomous daily run (Fri DOCS).
- CHANGELOG.md [Unreleased] staged with W23 polish (cs-concept, tara, fmeda) and docs entries
- New example README stubs: cs-concept-builder, tara-builder, fmeda-builder (coverage 7.9% -> 11.8%)
- STATUS.md regen restores canonical domain spread (safety=15, quality=10) from Tue 2026-06-02 rules
- Open issues: 12 (was 13 Thu - external delta, no autonomous label/close actions this run)

Generated by automotive-skills-daily-standup scheduled task.

examples/cs-concept-builder/README.md

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+# cs-concept-builder — Example
+
+**What this skill produces:** An ISO/SAE 21434 Cybersecurity Concept xlsx deriving Cybersecurity Requirements (CSRs) per cybersecurity goal across the six security properties (authentication, authorization, integrity, confidentiality, availability, non-repudiation), allocating Cybersecurity Assurance Level (CAL) per architectural element, and producing the Cybersecurity Implementation (CSI) hand-off table.
+
+**Typical input shape:** Upstream CS Goals xlsx (from `cs-goals-builder`) plus a system block-diagram JSON listing architectural elements, trust boundaries, data flows, and asset classifications.
+
+**Expected output:** `<item>-cs-concept.xlsx` — multi-tab workbook (CS Goals import, CSR Derivation tree per goal × property, CAL Allocation, Verification Method per CAL, CSI Hand-off, Traceability) with CSR-to-goal and CSR-to-element cross-references.
+
+**Sample I/O:** Input CS Goals for a telematics ECU + block diagram (5 elements, 3 trust boundaries) → Output `Telematics-cs-concept.xlsx` with 24 CSRs derived across 6 properties, 5 elements at CAL 2–3, and 8 CSI hand-off rows.
+
+**Run:** Trigger by phrasing, e.g. "Build the cybersecurity concept for the telematics ECU from the CS Goals workbook".

examples/fmeda-builder/README.md

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+# fmeda-builder — Example
+
+**What this skill produces:** An ISO 26262-5 Hardware Safety Analysis (FMEDA) xlsx enumerating failure modes per HW element, allocating safety mechanisms from the upstream TSC, applying diagnostic coverage percentages, and deriving formula-driven hardware safety metrics (SPFM, LFM, PMHF) with auto-verification against per-ASIL thresholds.
+
+**Typical input shape:** Upstream TSC xlsx (from `tsc-builder`) for safety-mechanism allocations plus a HW Bill of Materials JSON listing components with base failure rates (FIT), package-level grouping, and safety-relevant classification (safety-related vs QM).
+
+**Expected output:** `<item>-fmeda.xlsx` — multi-tab workbook (Title, Element Catalog, FMEDA Worksheet with editable DC%, SPFM, LFM, PMHF, Dashboard, ASIL Targets, Traceability) where SUMIF + IF formulas propagate DC% and base-rate edits straight into the SPFM/LFM/PMHF metric tabs and Pass/Fail flags against the ASIL target row.
+
+**Sample I/O:** Input a TSC stub for an EPB controller + 64-row HW BOM JSON → Output `EPB-fmeda.xlsx` with 184 failure modes enumerated, SPFM = 99.2% (ASIL D target ≥ 99%, PASS), LFM = 90.4% (ASIL D target ≥ 90%, PASS), PMHF = 8.7 FIT (ASIL D target < 10 FIT, PASS).
+
+**Run:** Trigger by phrasing, e.g. "Build the FMEDA for the EPB controller from the TSC and BOM".

examples/tara-builder/README.md

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+# tara-builder — Example
+
+**What this skill produces:** An ISO/SAE 21434 Clause 15 Threat Analysis and Risk Assessment (TARA) xlsx with assumptions, asset inventory, STRIDE-coverage threat catalog, impact / feasibility analysis, risk-determination matrix, treatment decisions, and derived cybersecurity goals — audit-ready for ISO/SAE 21434 concept-phase work products and UN R155 type-approval evidence.
+
+**Typical input shape:** Item definition (system identity, cybersecurity-relevant assets), threat scenarios per STRIDE category, impact ratings (safety / financial / operational / privacy), feasibility ratings (elapsed time, expertise, knowledge, window of opportunity, equipment), and an existing-controls inventory.
+
+**Expected output:** `<item>-tara.xlsx` — multi-tab workbook (Assumptions, Assets, STRIDE Threat Catalog, Impact, Feasibility, Risk Matrix, Treatment, Derived CS Goals, Traceability) with risk value auto-computed from impact × feasibility lookup and CAL-level color coding.
+
+**Sample I/O:** Input a body-control ECU asset list (12 assets) + 28 threat scenarios → Output `BCM-tara.xlsx` with 28 threats rated, 9 high-risk items flagged, and 6 cybersecurity goals derived for hand-off to `cs-goals-builder`.
+
+**Run:** Trigger by phrasing, e.g. "Build a TARA for the body control module — 12 assets and 28 STRIDE threats".