chore(db): backup database after Sprint 18 close

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

CHANGELOG.md

@@ -40,6 +40,7 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 - Protocol versioning tests — version round-trip, mismatch detection, serde_default migration pattern, full variant coverage (#232)
 - Team monitoring rules — heartbeat rule for stuck agent detection, bottleneck detection pattern
 - `tooling/tea-comment` — single-command wrapper for posting Gitea PR/issue comments with multi-line bodies
+- D-084: Insert icon system — custom SVG icons over icon fonts, authored to insert geometric constraints with lattice_profile weight scaling
 - Insert/HUD wireframe and visual spec (#314) — dual character variants (smuggler social network view, detective investigation overlay) with pixel-precise layout, entity markers, time display, border arrows, commission grid, and all interaction states
 - Contradiction monologue lines — 16 hand-authored lines (8 detective, 8 smuggler) for Sera/Kael FRIEND arc, Phase 2 blindsiding + Phase 3 pattern recognition, cognitive-dissonance-not-accusation tone per D-083 (#552)
 - Diegetic tutorial monologue — 20 lines (10 per character) teaching movement, fog, sound, NPC interaction, and insert/HUD through character voice, fire-once on first-time events (#330)

decisions/README.md

@@ -10,12 +10,12 @@ Cross-domain decisions live in one file with cross-reference notes in related fi
 
 | File | Domain | Decisions |
 |------|--------|-----------|
-| [architecture.md](architecture.md) | Technical foundation | D-008, D-009, D-010, D-012, D-020, D-026, D-030, D-031, D-041, D-042, D-054, D-055, D-066, D-068, D-073 |
-| [perception.md](perception.md) | Player observation | D-011, D-015, D-016, D-017, D-018, D-019, D-033, D-035, D-043, D-044, D-045, D-046, D-047, D-048, D-049, D-052, D-056, D-057, D-058, D-059, D-060, D-061, D-067, D-069, D-070, D-071, D-072, D-076, D-077, D-078 |
+| [architecture.md](architecture.md) | Technical foundation | D-008, D-009, D-010, D-012, D-020, D-026, D-030, D-031, D-041, D-042, D-054, D-055, D-066, D-068, D-073, D-085 |
+| [perception.md](perception.md) | Player observation | D-011, D-015, D-016, D-017, D-018, D-019, D-033, D-035, D-043, D-044, D-045, D-046, D-047, D-048, D-049, D-052, D-056, D-057, D-058, D-059, D-060, D-061, D-067, D-069, D-070, D-071, D-072, D-076, D-077, D-078, D-084 |
 | [content.md](content.md) | NPC, dialogue, templates | D-023, D-024, D-025, D-028, D-029, D-032, D-034, D-035, D-036, D-037, D-050, D-062, D-063, D-064, D-074, D-075, D-084 |
 | [scope.md](scope.md) | Game concept, prototype | D-001, D-003, D-005, D-006, D-007, D-013, D-014, D-027, D-038, D-039, D-051, D-053, D-065 |
 | [process.md](process.md) | Team, workflow | D-004, D-021, D-022, D-040 |
-| [questions.md](questions.md) | Open questions | Q-001 through Q-028 |
+| [questions.md](questions.md) | Open questions | Q-001 through Q-029 |
 | [rejected.md](rejected.md) | Rejected alternatives | R-001 through R-010 |
 
 ## Querying Decisions

decisions/architecture.md

@@ -210,4 +210,19 @@ Technical foundation decisions that constrain implementation: engine, client-ser
 
 ---
 
-*16 decisions. Last updated: 2026-02-16*
+### D-085: Per-game save directory structure
+- **Date:** 2026-02-25
+- **Decision:** Every new game creates a dedicated directory under the user save path. All saves for that game (manual, quicksave, autosave) live inside the game's directory. Directory name includes a human-readable game identifier and creation timestamp.
+- **Rationale:** Natively groups saves by game without requiring a database or index file. Players can browse, back up, or delete game saves at the filesystem level. Avoids a flat save folder where 50+ files from different games are interleaved.
+- **Structure:** `user://saves/<game-id>/` where `<game-id>` is `<timestamp>-<seed>` (e.g., `20260225-143022-a7b3f1/`). Inside: `quicksave.sav`, `autosave.sav`, `manual_001.sav`, etc.
+- **Constraints:**
+  - Game directory created on "New Game" — even before the first save, so the path exists for quicksave/autosave.
+  - F5 = quicksave (overwrites `quicksave.sav` in the active game dir).
+  - F6 = quickload (loads `quicksave.sav` from the active game dir).
+  - Loading screen lists game directories sorted by last-modified, shows most recent save per game.
+- **Raised by:** Team Leader (Jeroen)
+- **Dissent:** None
+
+---
+
+*17 decisions. Last updated: 2026-02-25*

decisions/perception.md

@@ -446,6 +446,25 @@ How the player observes and interacts with the world: camera, fog, line-of-sight
 - **Implements:** Tickets #547 (struct + detection), #550 (monologue + event chain)
 - **Cross-reference:** [D-034](content.md#d-034-the-friend-npc-archetype), [D-033](perception.md#d-033-entity-color--relationship-to-player), [D-041](architecture.md#d-041-knowledge-graph-data-model), [D-079](#d-079-knowledge-grant-architecture), [D-080](#d-080-npc-to-npc-knowledge-propagation)
 
+### D-084: Insert icon system — custom SVG, no icon font
+- **Date:** 2026-02-24
+- **Decision:** The insert overlay (z-layer 6) uses **custom SVG icons**, not an icon font. The v0.1 icon vocabulary (~12–15 shapes: stance indicators, perception mode icons, inventory item silhouettes, border arrows) is too small and too specific for a font. No available icon font (Material Symbols, Phosphor, Feather, Tabler) matches the insert's geometric/diegetic visual language — they all read as "app UI," not "neural lattice overlay." Custom SVGs authored to the insert's constraint set (clean geometry, minimal anchor points, `#c8d0e0` chrome color, 1px stroke base weight) ensure all insert elements feel generated by the same system.
+- **Why not an icon font:**
+  - **Vocabulary mismatch:** No font has "hexagonal corridor access token" or "thermal perception mode" in a sci-fi register. Inventory silhouettes are universe-specific — we author them regardless.
+  - **Weight precision:** The spec defines 1px (smuggler/baseline) vs 1–2px (detective/augmented) line weight. Custom SVG `stroke-width` responds to `lattice_profile` parameter directly. Icon fonts can't vary weight per-character in a single rendering pass.
+  - **Visual coherence:** Mixing a generic icon font with the custom geometric primitives (diamond POI markers, 6px dots, 4px evidence squares, commission grid) creates two visual registers on the same UI layer. All insert elements must feel like they came from one design system.
+  - **Godot integration:** Godot 4 handles SVG natively (AtlasTexture, importable SVGs). Runtime color via ShaderMaterial. No font rendering pipeline or bitmap caching needed.
+- **Icon vocabulary (v0.1):**
+  - Inventory item silhouettes: 3–4 items at 40×40px (manifest, access token, comm log) — smuggler only per [D-065](scope.md#d-065-smuggler-inventory--knowledge-primary-with-physical-evidence)
+  - Perception mode indicators: 2–3 icons at 20×20px (deferred until #315 specs the modes)
+  - Stance indicators: text labels (`WALK`, `CAREFUL`, `SPRINT`, `CROUCH`) at Michroma 11px — icons deferred to v0.2
+  - Border arrows and geometric markers (diamonds, dots, squares): drawn as primitives, not icons
+- **Authoring constraints:** 1px stroke weight base (scaled to 2px for `lattice_augmented` via parameter), `#c8d0e0` as design reference color (runtime-replaceable), minimal anchor points, no decorative curves.
+- **Calibration reference:** Phosphor Light (MIT) — not for use, but for evaluating small-size readability of custom shapes during authoring. If a custom icon doesn't read as cleanly as a Phosphor Light equivalent at 16px, simplify it.
+- **Cross-reference:** Insert overlay ([D-048](#d-048-neural-insert-overlay--visual-design)), insert HUD wireframe (`docs/design/insert-hud-wireframe-v01.md`), visual grammar (`docs/design/visual-grammar-v01.md` §7), cursor states ([D-056](#d-056-cursor-states--insert-styled-geometric)), inventory ([D-065](scope.md#d-065-smuggler-inventory--knowledge-primary-with-physical-evidence))
+- **Raised by:** Araminta (analysis and recommendation), project lead (confirmed).
+- **Dissent:** None.
+
 ---
 
-*37 decisions. Last updated: 2026-02-24 (D-079–D-083: Knowledge Flow & NPC Information Boundaries Workshop)*
+*38 decisions. Last updated: 2026-02-24 (D-084: Insert icon system)*

decisions/questions.md

@@ -168,6 +168,20 @@ Tracked questions awaiting discussion or resolution.
 - **Assigned to:** Gestalt, Tyre
 - **Source:** Sprint 16 PR #59 review discussion (2026-02-23)
 
+### Q-029: Save file format design
+- **Status:** Open
+- **Question:** What should the long-term save file format look like? Key considerations:
+  1. **Versioning and migration:** How do saves survive across game versions? Schema evolution strategy (field additions, renames, removals). Should saves embed a version number and run migrations on load?
+  2. **Compression:** Raw MessagePack vs compressed (zstd, lz4)? Tradeoff between save/load speed and file size. SaveStateV1 is already MessagePack — does that carry forward?
+  3. **Integrity:** Checksums or signatures to detect corruption? CRC32 header?
+  4. **Metadata header:** Should the file have a readable header (game version, save date, play time, character name) that the loading screen can read without deserializing the full save?
+  5. **Determinism:** D-010 requires deterministic simulation. Can saves capture enough state to resume deterministically, or is approximate resume acceptable?
+  6. **Modding:** Should the format be documented for mod authors? Does it need extension points?
+  7. **Cloud sync:** Any considerations for Steam Cloud or similar? File size limits?
+- **Context:** Sprint 19 implements a quick-and-dirty save format (D-085 per-game directories, MessagePack serialization from SaveStateV1). This question tracks the thorough design pass for production quality.
+- **Assigned to:** Tyre, Dudley
+- **Source:** Team Leader directive (Sprint 19 planning)
+
 ---
 
-*28 questions (7 resolved, 1 partially resolved, 20 open). Last updated: 2026-02-25 (Q-028 resolved → D-084)*
+*29 questions (7 resolved, 1 partially resolved, 21 open). Last updated: 2026-02-25 (Q-029 added)*