Merge gitea/main into the Motion branch

Motion was written against a base five commits behind main, so the
integration is the interesting part of this commit:

- The migration is renumbered 0014 -> 0015. Main shipped
  0014_piggy_conversations, and two migrations sharing an index is a
  journal that applies one of them.
- The seed-idempotency gate keeps main's all-tables diff rather than the
  motion_templates counter this branch added; the general check subsumes
  the specific one.
- Nav gains a Motion group alongside main's new Workspace group, and
  Piggy keeps the mark main gave it.
- Stat keeps main's container-scaled figure, which already carries the
  min-w-0 this branch added for the same reason.
- Piggy's page labels keep main's refusal wording for the four pages with
  no tool of their own, and gain the three Motion routes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

packages/db/migrations/0014_piggy_conversations.sql

@@ -0,0 +1,68 @@
+-- Generated by drizzle-kit, then trimmed. Three statements it emitted are not
+-- here, and deleting them is the point rather than an oversight.
+--
+-- 0005, 0012 and 0013 were hand-written and left no snapshot, so drizzle
+-- diffed against 0011 and re-proposed their work: `ALTER TYPE pig_team_role
+-- ADD VALUE 'viewer'` (0012, and without the IF NOT EXISTS that made that one
+-- safe) and a drop-and-add of the learn_resources provider CHECK (0013). On
+-- any database those migrations have already touched, the first fails outright
+-- and the second is a needless drop of a live constraint. The 0014 snapshot
+-- beside this file is kept in full, because it describes the schema as it
+-- actually is — which is what re-synchronises the snapshot chain with the
+-- hand-written migrations for whoever generates 0015.
+--
+-- Everything below is additive: two new tables and one new nullable column.
+-- Nothing here reads or rewrites an existing row, so it cannot fail on data.
+CREATE TABLE "piggy_conversations" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"user_id" uuid NOT NULL,
+	"title" text NOT NULL,
+	"model" text,
+	"mode" text,
+	"read_capability" text DEFAULT 'book:read' NOT NULL,
+	"context" jsonb,
+	"last_message_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "piggy_conversations_mode_check" CHECK ("piggy_conversations"."mode" IS NULL OR "piggy_conversations"."mode" IN ('read_only', 'confirm', 'auto')),
+	CONSTRAINT "piggy_conversations_read_capability_check" CHECK ("piggy_conversations"."read_capability" IN ('book:read', 'economics:read', 'team:read')),
+	CONSTRAINT "piggy_conversations_title_check" CHECK (length("piggy_conversations"."title") > 0)
+);
+--> statement-breakpoint
+CREATE TABLE "piggy_messages" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"conversation_id" uuid NOT NULL,
+	"seq" integer NOT NULL,
+	"role" text NOT NULL,
+	"content" text DEFAULT '' NOT NULL,
+	"reasoning" text,
+	"model" text,
+	"mode" text,
+	"input_tokens" integer,
+	"output_tokens" integer,
+	"cost_micro_cents" integer,
+	"finish_reason" text,
+	"tool_call_id" text,
+	"tool_name" text,
+	"tool_arguments" jsonb,
+	"tool_result" jsonb,
+	"tool_ok" boolean,
+	"approval_id" text,
+	"approval_change" jsonb,
+	"approval_decision" text,
+	"approval_decided_at" timestamp with time zone,
+	"error" text,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "piggy_messages_role_check" CHECK ("piggy_messages"."role" IN ('user', 'assistant', 'tool')),
+	CONSTRAINT "piggy_messages_mode_check" CHECK ("piggy_messages"."mode" IS NULL OR "piggy_messages"."mode" IN ('read_only', 'confirm', 'auto')),
+	CONSTRAINT "piggy_messages_approval_decision_check" CHECK ("piggy_messages"."approval_decision" IS NULL OR "piggy_messages"."approval_decision" IN ('apply', 'reject')),
+	CONSTRAINT "piggy_messages_seq_check" CHECK ("piggy_messages"."seq" >= 0)
+);
+--> statement-breakpoint
+ALTER TABLE "agent_runs" ADD COLUMN "piggy_conversation_id" uuid;--> statement-breakpoint
+ALTER TABLE "piggy_conversations" ADD CONSTRAINT "piggy_conversations_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "piggy_messages" ADD CONSTRAINT "piggy_messages_conversation_id_piggy_conversations_id_fk" FOREIGN KEY ("conversation_id") REFERENCES "public"."piggy_conversations"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "agent_runs" ADD CONSTRAINT "agent_runs_piggy_conversation_id_piggy_conversations_id_fk" FOREIGN KEY ("piggy_conversation_id") REFERENCES "public"."piggy_conversations"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "piggy_conversations_user_recent_idx" ON "piggy_conversations" USING btree ("user_id","last_message_at" DESC NULLS LAST);--> statement-breakpoint
+CREATE UNIQUE INDEX "piggy_messages_conversation_seq_key" ON "piggy_messages" USING btree ("conversation_id","seq");--> statement-breakpoint
+CREATE INDEX "agent_runs_piggy_conversation_idx" ON "agent_runs" USING btree ("piggy_conversation_id");

packages/db/migrations/meta/_journal.json

@@ -104,7 +104,14 @@
       "idx": 14,
       "version": "7",
       "when": 1786800000000,
-      "tag": "0014_motion",
+      "tag": "0014_piggy_conversations",
+      "breakpoints": true
+    },
+    {
+      "idx": 15,
+      "version": "7",
+      "when": 1786900000000,
+      "tag": "0015_motion",
       "breakpoints": true
     }
   ]