chore(hq): daily sync 2026-02-16

hq/hq/condensations/2026-02-16-mirror-substrate-material-trade.md

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+## 📝 Condensation: Mirror Substrate Material Trade Study Review
+**Date:** 2026-02-16
+**Channel:** #engineering
+**Thread:** N/A
+**Participants:** Webster, Auditor
+
+### Context
+A trade study was performed by Webster (orch-1771210952) to select a substrate material for a 500mm space telescope mirror, comparing SiC, ULE, and Zerodur. The study was subsequently challenged by Auditor (orch-1771211034).
+
+### Decision
+The initial trade study and its recommendation of Zerodur are **invalidated**. A new, more comprehensive study is required before a decision can be made.
+
+### Rationale
+The audit identified critical flaws in the original analysis:
+1.  **Incorrect Operating Temperature:** The study was based on a 20°C environment, whereas the mirror will operate at cryogenic temperatures (<100K). This fundamental error invalidates the material performance comparison.
+2.  **Omission of Key Material:** The study failed to include Beryllium, a flight-proven material used in critical space telescopes like JWST.
+3.  **Incomplete Criteria:** The analysis lacked manufacturability, cost, and lead time considerations.
+
+### Action Items
+- [ ] Re-run the trade study using correct cryogenic temperature parameters (<100K).
+- [ ] Include Beryllium in the material comparison.
+- [ ] Add manufacturability, cost, and lead time to the evaluation criteria.
+
+### Supersedes
+- Webster's initial research findings and recommendation (orch-1771210952).

hq/hq/projects/TEMPLATE-CONTEXT.md

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+# Project Context: [Project Name]
+**Last updated:** [date] by Secretary
+
+## Current State
+- Phase: [current phase]
+- Active: [what's being worked on]
+- Blocked: [blockers, or "Nothing"]
+
+## Key Decisions (most recent first)
+1. [YYYY-MM-DD] [Decision] — [one-line rationale]
+
+## Active Constraints
+- [constraint 1]
+
+## Superseded Decisions
+- *(none yet)*
+
+## Key Contacts
+- [name] — [role/relevance]
+
+## References
+- [link to spec, channel, etc.]

hq/hq/projects/sim-test/CONTEXT.md

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+# Project Context: sim-test
+**Last updated:** 2026-02-16 by Secretary
+
+## Current State
+- **Phase:** Design / Analysis
+- **Active:** Material selection for the primary mirror.
+- **Blocked:** Material selection is blocked pending a valid trade study.
+
+## Key Decisions (most recent first)
+1.  **2026-02-16:** Initial mirror material trade study was invalidated due to incorrect temperature parameters and incomplete material comparison. A new study is required.
+
+## Active Constraints
+- Mirror must perform reliably at cryogenic temperatures (<100K).
+
+## Superseded Decisions
+- ~~**2026-02-15:** Zerodur recommended for mirror substrate.~~ → Replaced by the requirement for a new trade study (2026-02-16).