feat: Add GlowTrack mood and habit wellbeing grid specifications

- Introduced export schema for JSON data structure.
- Created renderer contract detailing canvas/SVG rendering requirements.
- Defined IndexedDB storage schema and migration strategies.
- Documented data model including entities and relationships.
- Developed implementation plan outlining execution flow and project structure.
- Provided quickstart guide for development environment setup.
- Compiled research documentation on performance, accessibility, and theming.
- Established feature specification with user scenarios and functional requirements.

specs/001-glowtrack-a-mood/contracts/export.schema.json

@@ -0,0 +1,75 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://glowtrack.app/schema/export.json",
+  "title": "GlowTrack Export",
+  "type": "object",
+  "required": ["version", "app", "exportedAt", "data"],
+  "properties": {
+    "version": { "type": "string", "pattern": "^\\d+\\.\\d+\\.\\d+$" },
+    "app": {
+      "type": "object",
+      "required": ["name", "version"],
+      "properties": {
+        "name": { "const": "GlowTrack" },
+        "version": { "type": "string" }
+      }
+    },
+    "exportedAt": { "type": "string", "format": "date-time" },
+    "data": {
+      "type": "object",
+      "required": ["settings", "habits", "days"],
+      "properties": {
+        "settings": { "type": "object" },
+        "habits": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "required": ["id", "type", "label", "defaultWeight", "archived"],
+            "properties": {
+              "id": { "type": "string" },
+              "type": { "enum": ["positive", "negative"] },
+              "label": { "type": "string" },
+              "icon": { "type": ["string", "null"] },
+              "defaultWeight": { "type": "number", "minimum": 0 },
+              "archived": { "type": "boolean" }
+            }
+          }
+        },
+        "days": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "required": ["date", "mood", "entries"],
+            "properties": {
+              "date": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$" },
+              "mood": {
+                "type": "object",
+                "required": ["hue", "intensity"],
+                "properties": {
+                  "hue": { "type": "number", "minimum": 0, "maximum": 360 },
+                  "intensity": { "type": "number", "minimum": 0, "maximum": 1 },
+                  "note": { "type": ["string", "null"] }
+                }
+              },
+              "entries": {
+                "type": "array",
+                "items": {
+                  "type": "object",
+                  "required": ["id", "type", "habitId", "label", "weight", "timestamp"],
+                  "properties": {
+                    "id": { "type": "string" },
+                    "type": { "enum": ["positive", "negative"] },
+                    "habitId": { "type": "string" },
+                    "label": { "type": "string" },
+                    "weight": { "type": "number", "minimum": 0 },
+                    "timestamp": { "type": "string", "format": "date-time" }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}