feat(tools): implement CRUD operations for thoughts and projects

* Add tools for creating, retrieving, updating, and deleting thoughts.
* Implement project management tools for creating and listing projects.
* Introduce linking functionality between thoughts.
* Add search and recall capabilities for thoughts based on semantic queries.
* Implement statistics and summarization tools for thought analysis.
* Create database migrations for thoughts, projects, and links.
* Add helper functions for UUID parsing and project resolution.

configs/dev.yaml

@@ -0,0 +1,72 @@
+server:
+  host: "0.0.0.0"
+  port: 8080
+  read_timeout: "15s"
+  write_timeout: "30s"
+  idle_timeout: "60s"
+  allowed_origins:
+    - "*"
+
+mcp:
+  path: "/mcp"
+  server_name: "amcs"
+  version: "0.1.0"
+  transport: "streamable_http"
+
+auth:
+  mode: "api_keys"
+  header_name: "x-brain-key"
+  query_param: "key"
+  allow_query_param: false
+  keys:
+    - id: "local-client"
+      value: "replace-me"
+      description: "main local client key"
+
+database:
+  url: "postgres://postgres:postgres@localhost:5432/amcs?sslmode=disable"
+  max_conns: 10
+  min_conns: 2
+  max_conn_lifetime: "30m"
+  max_conn_idle_time: "10m"
+
+ai:
+  provider: "litellm"
+  embeddings:
+    model: "openai/text-embedding-3-small"
+    dimensions: 1536
+  metadata:
+    model: "gpt-4o-mini"
+    temperature: 0.1
+  litellm:
+    base_url: "http://localhost:4000/v1"
+    api_key: "replace-me"
+    use_responses_api: false
+    request_headers: {}
+    embedding_model: "openrouter/openai/text-embedding-3-small"
+    metadata_model: "gpt-4o-mini"
+  openrouter:
+    base_url: "https://openrouter.ai/api/v1"
+    api_key: ""
+    app_name: "amcs"
+    site_url: ""
+    extra_headers: {}
+
+capture:
+  source: "mcp"
+  metadata_defaults:
+    type: "observation"
+    topic_fallback: "uncategorized"
+
+search:
+  default_limit: 10
+  default_threshold: 0.5
+  max_limit: 50
+
+logging:
+  level: "info"
+  format: "json"
+
+observability:
+  metrics_enabled: true
+  pprof_enabled: false