feat(v2.0.5): Intentional Amnesia — active forgetting via top-down inhibitory control

First AI memory system to model forgetting as a neuroscience-grounded
PROCESS rather than passive decay. Adds the `suppress` MCP tool (#24),
Rac1 cascade worker, migration V10, and dashboard forgetting indicators.

Based on:
- Anderson, Hanslmayr & Quaegebeur (2025), Nat Rev Neurosci — right
  lateral PFC as the domain-general inhibitory controller; SIF
  compounds with each stopping attempt.
- Cervantes-Sandoval et al. (2020), Front Cell Neurosci PMC7477079 —
  Rac1 GTPase as the active synaptic destabilization mechanism.

What's new:
* `suppress` MCP tool — each call compounds `suppression_count` and
  subtracts a `0.15 × count` penalty (saturating at 80%) from
  retrieval scores during hybrid search. Distinct from delete
  (removes) and demote (one-shot).
* Rac1 cascade worker — background sweep piggybacks the 6h
  consolidation loop, walks `memory_connections` edges from
  recently-suppressed seeds, applies attenuated FSRS decay to
  co-activated neighbors. You don't just forget Jake — you fade
  the café, the roommate, the birthday.
* 24h labile window — reversible via `suppress({id, reverse: true})`
  within 24 hours. Matches Nader reconsolidation semantics.
* Migration V10 — additive-only (`suppression_count`, `suppressed_at`
  + partial indices). All v2.0.x DBs upgrade seamlessly on first launch.
* Dashboard: `ForgettingIndicator.svelte` pulses when suppressions
  are active. 3D graph nodes dim to 20% opacity when suppressed.
  New WebSocket events: `MemorySuppressed`, `MemoryUnsuppressed`,
  `Rac1CascadeSwept`. Heartbeat carries `suppressed_count`.
* Search pipeline: SIF penalty inserted into the accessibility stage
  so it stacks on top of passive FSRS decay.
* Tool count bumped 23 → 24. Cognitive modules 29 → 30.

Memories persist — they are INHIBITED, not erased. `memory.get(id)`
returns full content through any number of suppressions. The 24h
labile window is a grace period for regret.

Also fixes issue #31 (dashboard graph view buggy) as a companion UI
bug discovered during the v2.0.5 audit cycle:

* Root cause: node glow `SpriteMaterial` had no `map`, so
  `THREE.Sprite` rendered as a solid-coloured 1×1 plane. Additive
  blending + `UnrealBloomPass(0.8, 0.4, 0.85)` amplified the square
  edges into hard-edged glowing cubes.
* Fix: shared 128×128 radial-gradient `CanvasTexture` singleton used
  as the sprite map. Retuned bloom to `(0.55, 0.6, 0.2)`. Halved fog
  density (0.008 → 0.0035). Edges bumped from dark navy `0x4a4a7a`
  to brand violet `0x8b5cf6` with higher opacity. Added explicit
  `scene.background` and a 2000-point starfield for depth.
* 21 regression tests added in `ui-fixes.test.ts` locking every
  invariant in (shared texture singleton, depthWrite:false, scale
  ×6, bloom magic numbers via source regex, starfield presence).

Tests: 1,284 Rust (+47) + 171 Vitest (+21) = 1,455 total, 0 failed
Clippy: clean across all targets, zero warnings
Release binary: 22.6MB, `cargo build --release -p vestige-mcp` green
Versions: workspace aligned at 2.0.5 across all 6 crates/packages

Closes #31

crates/vestige-core/src/codebase/git.rs

@@ -275,9 +275,10 @@ impl GitAnalyzer {
                     files.push(path.to_path_buf());
                 }
                 if let Some(path) = delta.old_file().path()
-                    && !files.contains(&path.to_path_buf()) {
-                        files.push(path.to_path_buf());
-                    }
+                    && !files.contains(&path.to_path_buf())
+                {
+                    files.push(path.to_path_buf());
+                }
             }
         }
 
@@ -408,7 +409,11 @@ impl GitAnalyzer {
         }
 
         // Sort by strength
-        relationships.sort_by(|a, b| b.strength.partial_cmp(&a.strength).unwrap_or(std::cmp::Ordering::Equal));
+        relationships.sort_by(|a, b| {
+            b.strength
+                .partial_cmp(&a.strength)
+                .unwrap_or(std::cmp::Ordering::Equal)
+        });
 
         Ok(relationships)
     }
@@ -492,9 +497,10 @@ impl GitAnalyzer {
                 .unwrap_or_else(Utc::now);
 
             if let Some(since_time) = since
-                && commit_time < since_time {
-                    continue;
-                }
+                && commit_time < since_time
+            {
+                continue;
+            }
 
             let message = commit.message().map(|m| m.to_string()).unwrap_or_default();
 
@@ -541,7 +547,12 @@ impl GitAnalyzer {
         let symptom = if let Some(colon_byte_pos) = first_line.find(':') {
             // Convert byte position to char position for safe slicing
             let colon_char_pos = first_line[..colon_byte_pos].chars().count();
-            first_line.chars().skip(colon_char_pos + 1).collect::<String>().trim().to_string()
+            first_line
+                .chars()
+                .skip(colon_char_pos + 1)
+                .collect::<String>()
+                .trim()
+                .to_string()
         } else {
             first_line.to_string()
         };