Ground the repo docs and move presence provisioning to a declared spec

Align AGENTS.md with the FT-WP- prefix the hub already registered, and
rewrite INTENT.md and SCOPE.md, which were still the generated stubs and
carried none of the composed-post framing the interface is built around.

Fix two artifact inconsistencies: R-1's retry comment still described
POST /v1/hall-entries idempotent on entry_id, from before the reframe to
composed posts; and the seed pressure record listed only one of the two
hypotheses that cite it. Rename it to match its id.

Replace the manual T01-T03 route with FT-WP-0002. The Bot API cannot
create a bot or a channel, so provisioning is an MTProto client acting as
a designated operator account (Canon INT-03), driven from a declared
presence spec owned by the campaign. One bounded human bootstrap remains
and docs/provisioning.md says why it cannot be removed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172sgCZEEDJcnQmr4SGDvKa

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1361245@bnt-lap001
Assistant-Session: b3b428ef-f3e6-4688-b091-01f71461d66a

presence/telegram.example.yaml

@@ -0,0 +1,44 @@
+# Worked example of a declared presence.
+#
+# The real instance belongs in pr-hall-of-helix/presence/telegram.yaml — this
+# copy exists so the schema has something to be read against, and so the
+# provisioner's tests have a fixture. Keep it in sync with the schema, not with
+# the campaign.
+presence:
+  schema_version: "0.1"
+  campaign: "hall-of-helix"
+  interface: "helix-forge-telegram-publishing"
+
+  bot:
+    name: "HelixForge"
+    username_preference:
+      - "HelixForgeBot"
+      - "HelixForgePublishBot"
+      - "HelixForgeHallBot"
+    about: >-
+      Notes from the Hall of Helix — the people and sessions building HelixForge.
+    description: >-
+      HelixForge turns intent into structure, structure into capability, and
+      capability into lasting progress. This channel carries short accounts of
+      the work and the people doing it, each linking back to the entry it was
+      written from.
+    avatar: "presence/assets/helixforge-avatar.png"
+
+  channels:
+    test:
+      title: "HelixForge — test"
+      description: "Private rendering checks. Nothing here is published."
+      visibility: private
+      admin_rights: [post_messages]
+
+    public:
+      title: "Hall of Helix"
+      description: >-
+        Short notes on the work going into HelixForge, and the people doing it.
+      visibility: public
+      username_preference:
+        - "hallofhelix"
+        - "halloftheHelix"
+      admin_rights: [post_messages]
+
+  linked_discussion_group: false

presence/telegram.schema.yaml

@@ -0,0 +1,114 @@
+# Declared presence — schema for a campaign's Telegram surface.
+#
+# The instance lives in the campaign repo (pr-hall-of-helix/presence/telegram.yaml).
+# This file is the contract it is validated against, and lives here because the
+# provisioner is here. See docs/provisioning.md.
+$schema: "https://json-schema.org/draft/2020-12/schema"
+$id: "fluid-telegram/presence/telegram.schema.yaml"
+title: "Telegram declared presence"
+type: object
+required: [presence]
+additionalProperties: false
+
+properties:
+  presence:
+    type: object
+    required: [schema_version, campaign, interface, bot, channels]
+    additionalProperties: false
+    properties:
+
+      schema_version: { const: "0.1" }
+
+      campaign:
+        type: string
+        description: >
+          Campaign slug. Names the resolved-state file and the OpenBao subtree,
+          so it must be stable for the life of the presence.
+        pattern: "^[a-z0-9][a-z0-9-]*$"
+
+      interface:
+        type: string
+        description: The FLUID interface that will publish through this presence.
+        const: "helix-forge-telegram-publishing"
+
+      bot:
+        type: object
+        required: [name, about, description]
+        additionalProperties: false
+        properties:
+          name:
+            type: string
+            maxLength: 64
+            description: Display name. What a reader encountering it cold sees first.
+          username_preference:
+            type: array
+            description: >
+              Candidate usernames in order. BotFather requires a globally unique
+              name ending in "bot" or "_bot", and the first choice is often taken.
+              Declaring fallbacks keeps apply from stopping on a collision; the
+              one actually issued is recorded in the resolved state.
+            items: { type: string, pattern: "^[A-Za-z][A-Za-z0-9_]{3,30}([Bb]ot|_bot)$" }
+            minItems: 1
+          about:
+            type: string
+            maxLength: 120
+            description: BotFather /setabouttext — shown on the profile before a chat starts.
+          description:
+            type: string
+            maxLength: 512
+            description: BotFather /setdescription — shown in the empty chat.
+          avatar:
+            type: string
+            description: >
+              Repo-relative path to a square image in the campaign repo.
+              Provisioning is content-addressed on its digest, so replacing the
+              file is what triggers an update.
+
+      channels:
+        type: object
+        required: [test, public]
+        additionalProperties: false
+        description: >
+          Exactly two. The test channel is created first and is where every
+          verification runs; nothing reaches the public channel until a person
+          has looked at a rendering in the test channel (Canon PUB-01).
+        properties:
+          test:   { $ref: "#/$defs/channel" }
+          public: { $ref: "#/$defs/channel" }
+
+      linked_discussion_group:
+        type: boolean
+        default: false
+        description: >
+          Whether the public channel has a linked group for comments. Off by
+          default: comments are an inbound surface, and this interface is
+          outbound only. Turning it on is a scope change, not a setting.
+
+$defs:
+  channel:
+    type: object
+    required: [title, visibility]
+    additionalProperties: false
+    properties:
+      title:
+        type: string
+        maxLength: 128
+      description:
+        type: string
+        maxLength: 255
+      visibility:
+        enum: [private, public]
+      username_preference:
+        type: array
+        description: Public channels only. Ordered candidates; a private channel must not declare one.
+        items: { type: string, pattern: "^[A-Za-z][A-Za-z0-9_]{4,31}$" }
+      admin_rights:
+        type: array
+        description: >
+          Rights granted to the bot. The provisioner clamps this: post_messages
+          is the only permitted value, and any other entry fails validation
+          rather than being silently dropped. Declared explicitly so that a
+          reader of the spec can see the boundary rather than infer it.
+        items: { const: post_messages }
+        default: [post_messages]
+        maxItems: 1