chore(meta): docs/build sweep + tooling test gate (T-1069, T-1066)

- make test-tooling: planet-gen determinism guard + import_economics
  --dry-run, wired into pre-push on TOOLING_CHANGED; ruff widened to
  E4/E7/E9/F/W (90 safe auto-fixes applied; E402/E702/F841 ignored with
  documented counts)
- one-generator reality fixed in DEVOPS.md, asset-pipeline rule, CLAUDE.md
  (import_economics sole generator since #951/D-223); dead check-protocol
  target deleted; DEVOPS hook/config sections rewritten from the actual
  hook sources; team-patterns gate description updated (client+tooling)
- project.yaml: 0.2.0 → 0.4.0 per the 0.{phase}.{n} scheme, description
  refreshed from the v0.1 Sova narration to cascade reality
- stale comment sweep: voxel.rs stub claims (all 8 families implemented),
  cascade.rs TODO recited to T-1044, main.rs D-192 handshake claim,
  relationships.rs/chunk_streaming.rs version targets → phase language
- gitignore: client/settings.db* e2e-run artifacts

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/src/simulation/chunk_streaming.rs

@@ -1,9 +1,10 @@
 //! Chunk streaming system (#578, D-012).
 //!
 //! Loads chunks near the player and unloads distant chunks based on a
-//! configurable radius. For v0.1 the radius covers the entire hand-authored
+//! configurable radius. Until Phase 5 the radius covers the entire hand-authored
 //! district (256×256 visual tiles = 8×8 chunks of 32 tiles), so all chunks
-//! remain loaded. The architecture supports future per-demand loading (v0.3+).
+//! remain loaded. The architecture supports per-demand loading over the
+//! generated world once player control lands (Phase 5).
 //!
 //! The system runs on a configurable tick cadence (default: every 10 ticks).
 //! It queries the player's TilePosition, computes which chunks should be
@@ -17,8 +18,9 @@ use crate::simulation::time::SimulationTime;
 
 /// How many chunks around the player to keep loaded (Chebyshev distance).
 ///
-/// Default: 8, which covers the full v0.1 district (256×256 = 8×8 chunks).
-/// For v0.3+ borderless generation, set to 3-4 for memory-bounded streaming.
+/// Default: 8, which covers the full hand-authored district (256×256 = 8×8
+/// chunks). For Phase 5 borderless streaming over the generated world, set to
+/// 3-4 for memory-bounded loading.
 #[derive(Resource, Debug, Clone)]
 pub struct ChunkLoadRadius {
     pub radius: i32,